485BPOS

As filed with the Securities and Exchange Commission on January 3 , 2013

File No. 2-71928

File No. 811-03171

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	x
Pre-Effective Amendment No.	o
Post-Effective Amendment No. 39	x
and/or
REGISTRATION STATEMENT UNDER THE
INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 39	x

Value Line U.S. Government Securities Fund, Inc.

(Exact Name of Registrant as Specified in Charter)

7 Times Square, 21st Floor

New York, New York 10036-6524

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, Including Area Code: (212) 907-1900

Mitchell E. Appel

Value Line U.S. Government Securities Fund, Inc.

7 Times Square, 21st Floor

New York, New York 10036-6524

(Name and Address of Agent for Service)

Copy to:

Peter D. Lowenstein, Esq.

496 Valley Road

Cos Cob, CT 06807

It is proposed that this filing will become effective (check appropriate box)

x immediately upon filing pursuant to paragraph (b)

o on  ( date) pursuant to paragraph (b)

o 60 days after filing pursuant to paragraph (a)(1)

o 75 days after filing pursuant to paragraph (a)(2)

o on (date) pursuant to paragraph (a)(1)

o on (date) pursuant to paragraph (a)(2) of Rule 485

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifiies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, and State of New York, on the 2nd day of January , 2013.

VALUE LINE U.S. GOVERNMENT SECURITIES FUND, INC.
By:	/s/ Mitchell E. Appel
	Mitchell E. Appel, President and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Amendment has been signed below by the following persons in the capacities and on the dates indicated.

Signatures	Title	Date
*Joyce E. Heinzerling	Director	January 2, 201 3
(Joyce E. Heinzerling)
*Francis C. Oakley	Director	January 2, 2013
(Francis C. Oakley)
*David H. Porter	Director	January 2, 2013
(David H. Porter)
*Paul Craig Roberts	Director	January 2, 2013
(Paul Craig Roberts)
*Nancy-Beth Sheerr	Director	January 2, 2013
(Nancy-Beth Sheerr)
*Daniel S. Vandivort	Director	January 2, 2013
(Daniel S. Vandivort)

	/s/ Mitchell E. Appel	Director, President and Chief Executive	January 2, 2013
	(Mitchell E. Appel)	Officer (Principal Executive Officer)
	/s/ Emily D. Washington	Treasurer; Principal Financial	January 2, 2013
	(Emily D. Washington)	and Accounting Officer; Secretary
*By:	/s/ Mitchell E. Appel
	(Mitchell E. Appel, Attorney-In-Fact)

* Pursuant to Power of Attorney filed as an exhibit to Post-Effective Amendmen t No. 36 and incorporated herein by reference .

EXHIBIT INDEX

Exhibit No.	Exhibit
EX-101.INS	XBRL INSTANCE DOCUMENT
EX-101.SCH	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
EX-101.CAL	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE
EX-101.DEF	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
EX-101.LAB	XBRL TAXONOMY EXTENSION LABELS LINKBASE
EX-101.PRE	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE

XML

Label

Element

Value

rr_ProspectusLineItems

rr_ProspectusLineItems

Document Type

dei_DocumentType

485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Dec. 31, 2011

Entity Registrant Name

dei_EntityRegistrantName

VALUE LINE US GOVERNMENT SECURITIES FUND INC

Entity Central Index Key

dei_EntityCentralIndexKey

0000352430

Amendment Flag

dei_AmendmentFlag

false

Trading Symbol

dei_TradingSymbol

VALBX

Document Creation Date

dei_DocumentCreationDate

Jan. 02, 2013

Document Effective Date

dei_DocumentEffectiveDate

Jan. 02, 2013

rr_ProspectusDate

rr_ProspectusDate

Jan. 02, 2013

Value Line U.S. Government Securities Fund

rr_ProspectusLineItems

rr_ProspectusLineItems

rr_RiskReturnHeading

rr_RiskReturnHeading

Value Line

U.S. Government Securities Fund, Inc.

rr_ObjectiveHeading

rr_ObjectiveHeading

Investment objectives

rr_ObjectivePrimaryTextBlock

rr_ObjectivePrimaryTextBlock

The Fund’s primary investment objective is to seek maximum income without undue risk to principal.

rr_ObjectiveSecondaryTextBlock

rr_ObjectiveSecondaryTextBlock

Capital preservation and possible capital appreciation are secondary objectives.

rr_ExpenseHeading

rr_ExpenseHeading

Fees and expenses

rr_ExpenseNarrativeTextBlock

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. There are no shareholder fees (fees paid directly from your investment).

rr_OperatingExpensesCaption

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

rr_PortfolioTurnoverHeading

rr_PortfolioTurnoverHeading

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicated higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year the Fund’s portfolio turnover rate was 103% of the average value of its portfolio.

rr_PortfolioTurnoverRate

rr_PortfolioTurnoverRate

103.00%

rr_ExpenseExampleHeading

rr_ExpenseExampleHeading

Example

rr_ExpenseExampleNarrativeTextBlock

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether or not you redeem all of your shares at the end of these periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same except in year one. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

rr_StrategyHeading

rr_StrategyHeading

Principal investment strategies of the Fund

rr_StrategyNarrativeTextBlock

rr_StrategyNarrativeTextBlock

To achieve the Fund’s investment objective, EULAV Asset Management (the “Adviser”) invests, under normal conditions, at least 80% of the Fund’s net assets in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities, including mortgage-backed securities issued by government sponsored enterprises. Some of these securities, such as those issued by the Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”) are not backed by the full faith and credit of the United States. While the Adviser emphasizes income from investments for the Fund, the Adviser considers carefully the following: security of principal, duration, marketability, and diversity of investments. The Adviser seeks the best relative values among the universe of U.S. government securities. In deciding which securities to sell, the Adviser considers a number of factors, including economic developments, interest rate trends and cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile. The Fund’s portfolio may be actively traded.

rr_StrategyPortfolioConcentration

rr_StrategyPortfolioConcentration

To achieve the Fund’s investment objective, EULAV Asset Management (the “Adviser”) invests, under normal conditions, at least 80% of the Fund’s net assets in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities, including mortgage-backed securities issued by government sponsored enterprises. Some of these securities, such as those issued by the Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”) are not backed by the full faith and credit of the United States.

rr_RiskHeading

rr_RiskHeading

Principal risks of investing in the Fund

rr_RiskNarrativeTextBlock

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves risk, including the risk that you may receive little or no return on your investment, and that you may lose part or all of your investment. Therefore, before you invest in this Fund you should carefully evaluate the risks.

Because the Fund is actively managed, its investment return depends on the ability of the Adviser to manage its portfolio successfully. There is no guarantee that the Adviser’s investment strategies will produce the desired results. The price of Fund shares will increase and decrease according to changes in the value of the Fund’s investments.

The principal risk you assume when investing in the Fund is interest rate risk, which is the possibility that as interest rates rise the value of some fixed income securities may decrease.

Mortgage-backed securities are also more volatile and less liquid than other U.S. government securities and may be subject to credit, prepayment and extension risks.

The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. Many U.S. government securities purchased by the Fund, such as those issued by Fannie Mae and Freddie Mac, are not backed by the full faith and credit of the United States and are neither issued nor guaranteed by the U.S. Treasury. The maximum potential liability of the instrumentalities that issue some U.S. government securities held by the Fund may exceed the current resources of such instrumentalities, including their legal right to receive support from the U.S. Treasury. Consequently, although such instruments are U.S. government securities, it is possible that these issuers will not have the funds to meet their payment obligations in the future causing the Fund to incur a loss.

An investment in the Fund is not a complete investment program and you should consider it just one part of your total investment program. For a more complete discussion of risk, please turn to page 9.

An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.

rr_RiskLoseMoney

rr_RiskLoseMoney

Investing in any mutual fund involves risk, including the risk that you may receive little or no return on your investment, and that you may lose part or all of your investment.

rr_RiskNotInsuredDepositoryInstitution

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.

rr_BarChartAndPerformanceTableHeading

rr_BarChartAndPerformanceTableHeading

Fund performance

rr_PerformanceNarrativeTextBlock

rr_PerformanceNarrativeTextBlock

This bar chart and table can help you evaluate the potential risks of investing in the Fund. The bar chart below shows how returns for the Fund’s shares have varied over the past ten calendar years, and the table below shows the average annual total returns (before and after taxes) of these shares for one, five, and ten years. These returns are compared to the performance of the Barclays Capital 50% U.S. Government Bond Index/50% Mortgage Backed Securities Index, which is a broad based index that closely reflects the Fund’s investments. The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future. Updated performance information is available at: www.vlfunds.com.

rr_PerformanceInformationIllustratesVariabilityOfReturns

rr_PerformanceInformationIllustratesVariabilityOfReturns

This bar chart and table can help you evaluate the potential risks of investing in the Fund. The bar chart below shows how returns for the Fund’s shares have varied over the past ten calendar years, and the table below shows the average annual total returns (before and after taxes) of these shares for one, five, and ten years.

rr_PerformanceAvailabilityWebSiteAddress

rr_PerformanceAvailabilityWebSiteAddress

www.vlfunds.com.

rr_PerformancePastDoesNotIndicateFuture

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future.

rr_BarChartHeading

rr_BarChartHeading

Total returns (before taxes) as of 12/31 of each year (%)

rr_BarChartClosingTextBlock

rr_BarChartClosingTextBlock

Best Quarter:     Q4 2008     +5.61%

Worst Quarter:  Q2 2004     (2.56%)

As of November 30, 2012, the Fund had a year-to-date total return of 2.26%.

After-tax returns in the table below are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRA”).

rr_YearToDateReturnLabel

rr_YearToDateReturnLabel

year-to-date

rr_BarChartYearToDateReturnDate

rr_BarChartYearToDateReturnDate

Nov. 30, 2012

rr_BarChartYearToDateReturn

rr_BarChartYearToDateReturn

2.26%

rr_HighestQuarterlyReturnLabel

rr_HighestQuarterlyReturnLabel

Best Quarter:

rr_BarChartHighestQuarterlyReturnDate

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2008

rr_BarChartHighestQuarterlyReturn

rr_BarChartHighestQuarterlyReturn

5.61%

rr_LowestQuarterlyReturnLabel

rr_LowestQuarterlyReturnLabel

Worst Quarter: 

rr_BarChartLowestQuarterlyReturnDate

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2004

rr_BarChartLowestQuarterlyReturn

rr_BarChartLowestQuarterlyReturn

(2.56%)

rr_PerformanceTableHeading

rr_PerformanceTableHeading

Average Annual Total Returns for Periods Ended December 31, 2011

rr_PerformanceTableUsesHighestFederalRate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

rr_PerformanceTableNotRelevantToTaxDeferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRA”).

Value Line U.S. Government Securities Fund | Barclays Capital 50% Gov/50% MBS U.S. Government Bond Index

rr_ProspectusLineItems

rr_ProspectusLineItems

rr_IndexNoDeductionForFeesExpensesTaxes

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes)

Average Annual Return Label

rr_AverageAnnualReturnLabel

Barclays Capital 50% Gov/50% MBS Government Bond Index (reflects no deduction for fees, expenses or taxes)

1 year

rr_AverageAnnualReturnYear01

7.63%

5 years

rr_AverageAnnualReturnYear05

6.07%

10 years

rr_AverageAnnualReturnYear10

5.64%

Value Line U.S. Government Securities Fund | Value Line U.S. Government Securities Fund

rr_ProspectusLineItems

rr_ProspectusLineItems

Management Fees

rr_ManagementFeesOverAssets

0.50%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses

rr_OtherExpensesOverAssets

0.37%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.12%

Less 12b-1 Fee Waiver

rr_FeeWaiverOrReimbursementOverAssets

(0.25%)

^[1]

Net Expenses

rr_NetExpensesOverAssets

0.87%

1 year

rr_ExpenseExampleYear01

89

3 years

rr_ExpenseExampleYear03

331

5 years

rr_ExpenseExampleYear05

593

10 years

rr_ExpenseExampleYear10

1,341

2002

rr_AnnualReturn2002

10.38%

2003

rr_AnnualReturn2003

1.89%

2004

rr_AnnualReturn2004

2.26%

2005

rr_AnnualReturn2005

1.70%

2006

rr_AnnualReturn2006

3.60%

2007

rr_AnnualReturn2007

7.18%

2008

rr_AnnualReturn2008

8.22%

2009

rr_AnnualReturn2009

2.02%

2010

rr_AnnualReturn2010

4.45%

2011

rr_AnnualReturn2011

6.47%

Average Annual Return Label

rr_AverageAnnualReturnLabel

Return before taxes

1 year

rr_AverageAnnualReturnYear01

6.47%

5 years

rr_AverageAnnualReturnYear05

5.64%

10 years

rr_AverageAnnualReturnYear10

4.78%

Value Line U.S. Government Securities Fund | Value Line U.S. Government Securities Fund | Return after taxes on distributions

rr_ProspectusLineItems

rr_ProspectusLineItems

Average Annual Return Label

rr_AverageAnnualReturnLabel

Return after taxes on distributions

1 year

rr_AverageAnnualReturnYear01

5.04%

5 years

rr_AverageAnnualReturnYear05

4.23%

10 years

rr_AverageAnnualReturnYear10

3.35%

Value Line U.S. Government Securities Fund | Value Line U.S. Government Securities Fund | Return after taxes on distributions and sale of Fund shares

rr_ProspectusLineItems

rr_ProspectusLineItems

Average Annual Return Label

rr_AverageAnnualReturnLabel

Return after taxes on distributions and sale of Fund shares

1 year

rr_AverageAnnualReturnYear01

4.45%

5 years

rr_AverageAnnualReturnYear05

4.06%

10 years

rr_AverageAnnualReturnYear10

3.27%

[1] EULAV Securities LLC (the "Distributor") has contractually agreed to waive all of the Fund's 12b-1 fee through December 31, 2014. The waiver cannot be terminated before December 31, 2014 without the approval of the Fund's Board of Directors.

XML

Value Line U.S. Government Securities Fund

Value Line

U.S. Government Securities Fund, Inc.

Investment objectives

The Fund’s primary investment objective is to seek maximum income without undue risk to principal.

Capital preservation and possible capital appreciation are secondary objectives.

Fees and expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. There are no shareholder fees (fees paid directly from your investment).

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Value Line U.S. Government Securities Fund
Management Fees		0.50%
Distribution and Service (12b-1) Fees		0.25%
Other Expenses		0.37%
Total Annual Fund Operating Expenses		1.12%
Less 12b-1 Fee Waiver	[1]	(0.25%)
Net Expenses		0.87%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether or not you redeem all of your shares at the end of these periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same except in year one. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example (USD $)	1 year	3 years	5 years	10 years
Value Line U.S. Government Securities Fund	89	331	593	1,341

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicated higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year the Fund’s portfolio turnover rate was 103% of the average value of its portfolio.

Principal investment strategies of the Fund

To achieve the Fund’s investment objective, EULAV Asset Management (the “Adviser”) invests, under normal conditions, at least 80% of the Fund’s net assets in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities, including mortgage-backed securities issued by government sponsored enterprises. Some of these securities, such as those issued by the Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”) are not backed by the full faith and credit of the United States. While the Adviser emphasizes income from investments for the Fund, the Adviser considers carefully the following: security of principal, duration, marketability, and diversity of investments. The Adviser seeks the best relative values among the universe of U.S. government securities. In deciding which securities to sell, the Adviser considers a number of factors, including economic developments, interest rate trends and cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile. The Fund’s portfolio may be actively traded.

Principal risks of investing in the Fund

Investing in any mutual fund involves risk, including the risk that you may receive little or no return on your investment, and that you may lose part or all of your investment. Therefore, before you invest in this Fund you should carefully evaluate the risks.

Because the Fund is actively managed, its investment return depends on the ability of the Adviser to manage its portfolio successfully. There is no guarantee that the Adviser’s investment strategies will produce the desired results. The price of Fund shares will increase and decrease according to changes in the value of the Fund’s investments.

The principal risk you assume when investing in the Fund is interest rate risk, which is the possibility that as interest rates rise the value of some fixed income securities may decrease.

Mortgage-backed securities are also more volatile and less liquid than other U.S. government securities and may be subject to credit, prepayment and extension risks.

The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. Many U.S. government securities purchased by the Fund, such as those issued by Fannie Mae and Freddie Mac, are not backed by the full faith and credit of the United States and are neither issued nor guaranteed by the U.S. Treasury. The maximum potential liability of the instrumentalities that issue some U.S. government securities held by the Fund may exceed the current resources of such instrumentalities, including their legal right to receive support from the U.S. Treasury. Consequently, although such instruments are U.S. government securities, it is possible that these issuers will not have the funds to meet their payment obligations in the future causing the Fund to incur a loss.

An investment in the Fund is not a complete investment program and you should consider it just one part of your total investment program. For a more complete discussion of risk, please turn to page 9.

An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.

Fund performance

This bar chart and table can help you evaluate the potential risks of investing in the Fund. The bar chart below shows how returns for the Fund’s shares have varied over the past ten calendar years, and the table below shows the average annual total returns (before and after taxes) of these shares for one, five, and ten years. These returns are compared to the performance of the Barclays Capital 50% U.S. Government Bond Index/50% Mortgage Backed Securities Index, which is a broad based index that closely reflects the Fund’s investments. The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future. Updated performance information is available at: www.vlfunds.com.

Total returns (before taxes) as of 12/31 of each year (%)

Best Quarter:     Q4 2008     +5.61%

Worst Quarter:  Q2 2004     (2.56%)

As of November 30, 2012, the Fund had a year-to-date total return of 2.26%.

After-tax returns in the table below are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRA”).

Average Annual Total Returns for Periods Ended December 31, 2011

Average Annual Total Returns	Average Annual Return Label	1 year	5 years	10 years
Value Line U.S. Government Securities Fund	Return before taxes	6.47%	5.64%	4.78%
Value Line U.S. Government Securities Fund Return after taxes on distributions	Return after taxes on distributions	5.04%	4.23%	3.35%
Value Line U.S. Government Securities Fund Return after taxes on distributions and sale of Fund shares	Return after taxes on distributions and sale of Fund shares	4.45%	4.06%	3.27%
Value Line U.S. Government Securities Fund Barclays Capital 50% Gov/50% MBS U.S. Government Bond Index	Barclays Capital 50% Gov/50% MBS Government Bond Index (reflects no deduction for fees, expenses or taxes)	7.63%	6.07%	5.64%

[1] EULAV Securities LLC (the "Distributor") has contractually agreed to waive all of the Fund's 12b-1 fee through December 31, 2014. The waiver cannot be terminated before December 31, 2014 without the approval of the Fund's Board of Directors.