<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xsi:schemaLocation="http://www.sec.gov/edgar/nmfp2 eis_NMFP2_Filer.xsd" xmlns="http://www.sec.gov/edgar/nmfp2" xmlns:ns1="http://www.sec.gov/edgar/common" xmlns:ns2="http://www.sec.gov/edgar/statecodes" xmlns:ns3="http://www.sec.gov/edgar/nmfp2common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
    <submissionType>N-MFP2</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001038520</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <notifications></notifications>
      <notifications></notifications>
      <notifications></notifications>
      <notifications></notifications>
      <notifications/>
    </filerInfo>
  </headerData>
  <formData>
    <generalInfo>
      <reportDate>2020-05-29</reportDate>
      <cik>0001038520</cik>
      <seriesId>S000002772</seriesId>
      <totalShareClassesInSeries>1</totalShareClassesInSeries>
      <finalFilingFlag>N</finalFilingFlag>
      <fundAcqrdOrMrgdWthAnthrFlag>N</fundAcqrdOrMrgdWthAnthrFlag>
    </generalInfo>
    <seriesLevelInfo>
      <securitiesActFileNumber>333-26513</securitiesActFileNumber>
      <adviser>
        <adviserName>BNY Mellon Investment Adviser, Inc.</adviserName>
        <adviserFileNumber>801-08147</adviserFileNumber>
      </adviser>
      <indpPubAccountant>
        <name>E &amp;amp; Y</name>
        <city>New York</city>
        <stateCountry>NY</stateCountry>
      </indpPubAccountant>
      <administrator>
        <administratorName>none</administratorName>
      </administrator>
      <transferAgent>
        <name>BNY Mellon Transfer Inc</name>
        <cik>0001285911</cik>
        <fileNumber>084-06102</fileNumber>
      </transferAgent>
      <feederFundFlag>N</feederFundFlag>
      <masterFeederFund/>
      <masterFundFlag>N</masterFundFlag>
      <feederFund/>
      <seriesFundInsuCmpnySepAccntFlag>N</seriesFundInsuCmpnySepAccntFlag>
      <moneyMarketFundCategory>Exempt Government</moneyMarketFundCategory>
      <fundExemptRetailFlag>N</fundExemptRetailFlag>
      <averagePortfolioMaturity>29</averagePortfolioMaturity>
      <averageLifeMaturity>66</averageLifeMaturity>
      <totalValueDailyLiquidAssets>
        <ns3:fridayDay1>836495996.74</ns3:fridayDay1>
        <ns3:fridayDay2>990458850.73</ns3:fridayDay2>
        <ns3:fridayDay3>1487877437.65</ns3:fridayDay3>
        <ns3:fridayDay4>1282604672.62</ns3:fridayDay4>
        <ns3:fridayDay5>1327972166.22</ns3:fridayDay5>
      </totalValueDailyLiquidAssets>
      <totalValueWeeklyLiquidAssets>
        <ns3:fridayWeek1>1161121748.24</ns3:fridayWeek1>
        <ns3:fridayWeek2>1365128020.05</ns3:fridayWeek2>
        <ns3:fridayWeek3>1587869076.54</ns3:fridayWeek3>
        <ns3:fridayWeek4>1482596339.28</ns3:fridayWeek4>
        <ns3:fridayWeek5>1527965166.22</ns3:fridayWeek5>
      </totalValueWeeklyLiquidAssets>
      <percentageDailyLiquidAssets>
        <ns3:fridayDay1>0.5686</ns3:fridayDay1>
        <ns3:fridayDay2>0.6300</ns3:fridayDay2>
        <ns3:fridayDay3>0.8290</ns3:fridayDay3>
        <ns3:fridayDay4>0.8057</ns3:fridayDay4>
        <ns3:fridayDay5>0.8110</ns3:fridayDay5>
      </percentageDailyLiquidAssets>
      <percentageWeeklyLiquidAssets>
        <ns3:fridayWeek1>0.7893</ns3:fridayWeek1>
        <ns3:fridayWeek2>0.8683</ns3:fridayWeek2>
        <ns3:fridayWeek3>0.8847</ns3:fridayWeek3>
        <ns3:fridayWeek4>0.9314</ns3:fridayWeek4>
        <ns3:fridayWeek5>0.9332</ns3:fridayWeek5>
      </percentageWeeklyLiquidAssets>
      <cash>2913589.73</cash>
      <totalValuePortfolioSecurities>1631877828.91</totalValuePortfolioSecurities>
      <amortizedCostPortfolioSecurities>1631877828.91</amortizedCostPortfolioSecurities>
      <totalValueOtherAssets>2583770.53</totalValueOtherAssets>
      <totalValueLiabilities>506289.52</totalValueLiabilities>
      <netAssetOfSeries>1636868899.65</netAssetOfSeries>
      <numberOfSharesOutstanding>1636691717.60</numberOfSharesOutstanding>
      <stablePricePerShare>1.0000</stablePricePerShare>
      <sevenDayGrossYield>0.0021</sevenDayGrossYield>
      <netAssetValue>
        <ns3:fridayWeek1>1.0007</ns3:fridayWeek1>
        <ns3:fridayWeek2>1.0006</ns3:fridayWeek2>
        <ns3:fridayWeek3>1.0005</ns3:fridayWeek3>
        <ns3:fridayWeek4>1.0006</ns3:fridayWeek4>
        <ns3:fridayWeek5>1.0005</ns3:fridayWeek5>
      </netAssetValue>
    </seriesLevelInfo>
    <classLevelInfo>
      <classesId>C000007598</classesId>
      <minInitialInvestment>1000000000.00</minInitialInvestment>
      <netAssetsOfClass>1636868899.65</netAssetsOfClass>
      <numberOfSharesOutstanding>1636691717.60</numberOfSharesOutstanding>
      <netAssetPerShare>
        <ns3:fridayWeek1>1.0007</ns3:fridayWeek1>
        <ns3:fridayWeek2>1.0006</ns3:fridayWeek2>
        <ns3:fridayWeek3>1.0005</ns3:fridayWeek3>
        <ns3:fridayWeek4>1.0006</ns3:fridayWeek4>
        <ns3:fridayWeek5>1.0005</ns3:fridayWeek5>
      </netAssetPerShare>
      <fridayWeek1>
        <weeklyGrossSubscriptions>0.00</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>27221112.26</weeklyGrossRedemptions>
      </fridayWeek1>
      <fridayWeek2>
        <weeklyGrossSubscriptions>270559249.83</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>169636917.45</weeklyGrossRedemptions>
      </fridayWeek2>
      <fridayWeek3>
        <weeklyGrossSubscriptions>281813485.86</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>59304357.09</weeklyGrossRedemptions>
      </fridayWeek3>
      <fridayWeek4>
        <weeklyGrossSubscriptions>72594654.60</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>275590893.08</weeklyGrossRedemptions>
      </fridayWeek4>
      <fridayWeek5>
        <weeklyGrossSubscriptions>362995183.78</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>317569653.15</weeklyGrossRedemptions>
      </fridayWeek5>
      <totalForTheMonthReported>
        <weeklyGrossSubscriptions>987962574.07</weeklyGrossSubscriptions>
        <weeklyGrossRedemptions>849322933.03</weeklyGrossRedemptions>
      </totalForTheMonthReported>
      <sevenDayNetYield>0.0021</sevenDayNetYield>
      <personPayForFundFlag>Y</personPayForFundFlag>
      <nameOfPersonDescExpensePay>BNY Mellon Investment Advisor Inc. Management fee is waived. The fund also waives expenses to maintain a minimum yield of .01. 139,835.22</nameOfPersonDescExpensePay>
    </classLevelInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>ABN AMRO BANK NV</nameOfIssuer>
      <titleOfIssuer>ABN AMRO BANK NV</titleOfIssuer>
      <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
      <ISINId>1867</ISINId>
      <cik>0000897878</cik>
      <investmentCategory>U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash</investmentCategory>
      <fundAcqstnUndrlyngSecurityFlag>Y</fundAcqstnUndrlyngSecurityFlag>
      <repurchaseAgreement>
        <repurchaseAgreementOpenFlag>N</repurchaseAgreementOpenFlag>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2043-05-15</date>
          </maturityDate>
          <couponOrYield>2.875</couponOrYield>
          <principalAmountToTheNearestCent>9108000.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>11778864.07</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2044-11-15</date>
          </maturityDate>
          <couponOrYield>3.000</couponOrYield>
          <principalAmountToTheNearestCent>6229596.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>8260327.82</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2045-05-15</date>
          </maturityDate>
          <couponOrYield>3.000</couponOrYield>
          <principalAmountToTheNearestCent>266947.20</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>354885.82</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2021-09-30</date>
          </maturityDate>
          <couponOrYield>2.125</couponOrYield>
          <principalAmountToTheNearestCent>35755965.60</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>36799987.82</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2021-12-31</date>
          </maturityDate>
          <couponOrYield>2.125</couponOrYield>
          <principalAmountToTheNearestCent>25296872.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>26292047.60</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2022-03-31</date>
          </maturityDate>
          <couponOrYield>1.750</couponOrYield>
          <principalAmountToTheNearestCent>23824835.19</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>24572554.73</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2020-11-15</date>
          </maturityDate>
          <couponOrYield>2.625</couponOrYield>
          <principalAmountToTheNearestCent>61897.59</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>62665.66</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2026-07-15</date>
          </maturityDate>
          <couponOrYield>0.125</couponOrYield>
          <principalAmountToTheNearestCent>22253272.80</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>24984038.23</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2027-01-15</date>
          </maturityDate>
          <couponOrYield>0.375</couponOrYield>
          <principalAmountToTheNearestCent>4172844.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>4725290.45</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2023-05-15</date>
          </maturityDate>
          <couponOrYield>1.750</couponOrYield>
          <principalAmountToTheNearestCent>35199733.60</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>36797300.29</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2021-06-30</date>
          </maturityDate>
          <couponOrYield>2.125</couponOrYield>
          <principalAmountToTheNearestCent>20512117.60</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>21118801.79</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2027-05-15</date>
          </maturityDate>
          <couponOrYield>2.375</couponOrYield>
          <principalAmountToTheNearestCent>32558487.19</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>36687474.21</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID>BFXS5XCH7N0Y05NIXW11</LEIID>
          <maturityDate>
            <date>2024-06-30</date>
          </maturityDate>
          <couponOrYield>2.000</couponOrYield>
          <principalAmountToTheNearestCent>2010108.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>2165766.25</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
      </repurchaseAgreement>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0005</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>230000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>230000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.1405</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>FED HOME LN DISCOUNT NT</nameOfIssuer>
      <titleOfIssuer>FED HOME LN DISCOUNT NT</titleOfIssuer>
      <CUSIPMember>313384D71</CUSIPMember>
      <investmentCategory>U.S. Government Agency Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-08-28</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-08-28</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-08-28</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0125</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>49982889.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>49982889.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0305</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>FED HOME LN DISCOUNT NT</nameOfIssuer>
      <titleOfIssuer>FED HOME LN DISCOUNT NT</titleOfIssuer>
      <CUSIPMember>313384E47</CUSIPMember>
      <investmentCategory>U.S. Government Agency Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-09-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-09-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-09-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0082</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>49980625.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>49980625.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0305</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>N</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>FED HOME LN DISCOUNT NT</nameOfIssuer>
      <titleOfIssuer>FED HOME LN DISCOUNT NT</titleOfIssuer>
      <CUSIPMember>313384ZQ5</CUSIPMember>
      <investmentCategory>U.S. Government Agency Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-07-20</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-07-20</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-07-20</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0001</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>99983667.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>99983667.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0611</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>FED HOME LN DISCOUNT NT</nameOfIssuer>
      <titleOfIssuer>FED HOME LN DISCOUNT NT</titleOfIssuer>
      <CUSIPMember>313384YU7</CUSIPMember>
      <investmentCategory>U.S. Government Agency Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-30</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-30</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-30</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0007</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>99991944.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>99991944.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0611</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>FEDERAL HOME LOAN BANK</nameOfIssuer>
      <titleOfIssuer>FEDERAL HOME LOAN BANK</titleOfIssuer>
      <CUSIPMember>3130AGN35</CUSIPMember>
      <investmentCategory>U.S. Government Agency Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-19</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-19</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0011</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>7084913.42</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>7084913.42</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0043</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>N</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>GOLDMAN SACHS LINCS 96-1</nameOfIssuer>
      <titleOfIssuer>GOLDMAN SACHS LINCS 96-1</titleOfIssuer>
      <LEIID/>
      <ISINId>36018</ISINId>
      <cik>0000769993</cik>
      <investmentCategory>U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash</investmentCategory>
      <fundAcqstnUndrlyngSecurityFlag>Y</fundAcqstnUndrlyngSecurityFlag>
      <repurchaseAgreement>
        <repurchaseAgreementOpenFlag>N</repurchaseAgreementOpenFlag>
        <collateralIssuers>
          <nameOfCollateralIssuer>United States Treasury-U.S. Treasuries (including strips)</nameOfCollateralIssuer>
          <LEIID/>
          <maturityDate>
            <date>2021-01-15</date>
          </maturityDate>
          <couponOrYield>1.125</couponOrYield>
          <principalAmountToTheNearestCent>86119300.00</principalAmountToTheNearestCent>
          <valueOfCollateralToTheNearestCent>102000023.24</valueOfCollateralToTheNearestCent>
          <ctgryInvestmentsRprsntsCollateral>U.S. Treasuries (including strips)</ctgryInvestmentsRprsntsCollateral>
        </collateralIssuers>
      </repurchaseAgreement>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>NR</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-01</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-01</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0006</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100000000.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100000000.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0611</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>TREASURY BILL</nameOfIssuer>
      <titleOfIssuer>TREASURY BILL</titleOfIssuer>
      <CUSIPMember>9127962P3</CUSIPMember>
      <investmentCategory>U.S. Treasury Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1+</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-02</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-02</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-02</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0007</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>389999161.50</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>389999161.50</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.2383</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>TREASURY BILL</nameOfIssuer>
      <titleOfIssuer>TREASURY BILL</titleOfIssuer>
      <CUSIPMember>9127963C1</CUSIPMember>
      <investmentCategory>U.S. Treasury Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1+</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-07-07</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-07-07</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-07-07</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0011</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>124985312.50</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>124985312.50</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0764</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>US TREASURY FRN</nameOfIssuer>
      <titleOfIssuer>US TREASURY FRN</titleOfIssuer>
      <CUSIPMember>912828Z45</CUSIPMember>
      <investmentCategory>U.S. Treasury Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1+</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-01</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2022-01-31</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2022-01-31</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0029</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>100129203.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>100129203.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0611</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>US TREASURY N/B</nameOfIssuer>
      <titleOfIssuer>US TREASURY N/B</titleOfIssuer>
      <CUSIPMember>912828XY1</CUSIPMember>
      <investmentCategory>U.S. Treasury Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1+</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-06-30</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-06-30</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-06-30</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0008</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>230439553.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>230439553.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.1408</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <scheduleOfPortfolioSecuritiesInfo>
      <nameOfIssuer>WI TREASURY BILL</nameOfIssuer>
      <titleOfIssuer>WI TREASURY BILL</titleOfIssuer>
      <CUSIPMember>912796XH7</CUSIPMember>
      <investmentCategory>U.S. Treasury Debt</investmentCategory>
      <securityEligibilityFlag>Y</securityEligibilityFlag>
      <NRSRO>
        <nameOfNRSRO>FITCH'S RATING</nameOfNRSRO>
        <rating>F1+</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>MOODY'S RATING</nameOfNRSRO>
        <rating>P-1</rating>
      </NRSRO>
      <NRSRO>
        <nameOfNRSRO>S&amp;P RATING</nameOfNRSRO>
        <rating>A-1+</rating>
      </NRSRO>
      <investmentMaturityDateWAM>2020-09-03</investmentMaturityDateWAM>
      <investmentMaturityDateWAL>2020-09-03</investmentMaturityDateWAL>
      <finalLegalInvestmentMaturityDate>2020-09-03</finalLegalInvestmentMaturityDate>
      <securityDemandFeatureFlag>N</securityDemandFeatureFlag>
      <securityGuaranteeFlag>N</securityGuaranteeFlag>
      <securityEnhancementsFlag>N</securityEnhancementsFlag>
      <yieldOfTheSecurityAsOfReportingDate>0.0092</yieldOfTheSecurityAsOfReportingDate>
      <includingValueOfAnySponsorSupport>149942346.00</includingValueOfAnySponsorSupport>
      <excludingValueOfAnySponsorSupport>149942346.00</excludingValueOfAnySponsorSupport>
      <percentageOfMoneyMarketFundNetAssets>0.0914</percentageOfMoneyMarketFundNetAssets>
      <securityCategorizedAtLevel3Flag>N</securityCategorizedAtLevel3Flag>
      <dailyLiquidAssetSecurityFlag>Y</dailyLiquidAssetSecurityFlag>
      <weeklyLiquidAssetSecurityFlag>Y</weeklyLiquidAssetSecurityFlag>
      <illiquidSecurityFlag>N</illiquidSecurityFlag>
      <explanatoryNotes>- N/A -</explanatoryNotes>
    </scheduleOfPortfolioSecuritiesInfo>
    <signature>
      <registrant>Dreyfus Institutional Preferred Money Market Fund</registrant>
      <signatureDate>2020-06-03</signatureDate>
      <signature>/S/Anthony Ciavarella</signature>
      <nameOfSigningOfficer>Anthony Ciavarella</nameOfSigningOfficer>
      <titleOfSigningOfficer>Treasury Manager</titleOfSigningOfficer>
    </signature>
  </formData>
</edgarSubmission>
