2. Summary of Significant Accounting Policies

Principles of Consolidation

These unaudited consolidated financial statements include the accounts of all entities controlled by Covance. All significant intercompany accounts and transactions are eliminated. The equity method of accounting is used for investments in affiliates in which Covance owns between 20 and 50 percent and does not have the ability to exercise control. For investments in which Covance owns less than 20 percent and does not have the ability to exercise significant influence over operating or financial decisions of the investee, the cost method of accounting is applied. Where the fair value of the shares of the cost method investee is based on quoted prices in active markets, Covance accounts for such investments as available-for-sale securities. See Note 4.

Use of Estimates

These unaudited consolidated financial statements have been prepared in conformity with GAAP, which requires management to make estimates and assumptions about future events that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.

Short-Term Investments

Short-term investments consist of bank term deposits, denominated in Swiss Francs, which mature in August 2014.

Inventory

Inventories, which consist principally of finished goods and supplies, are valued at the lower of cost (first-in, first-out method) or market. Finished goods accounted for $33.5 million and $30.3 million and supplies accounted for $18.9 million and $18.0 million of total inventory at June 30, 2014 and December 31, 2013, respectively.

Prepaid Expenses and Other Current Assets

In connection with the management of multi-site clinical trials, Covance pays on behalf of its customers fees to investigators, volunteers and other out-of-pocket costs (such as travel, printing, meetings, couriers, etc.), for which the Company is reimbursed at cost, without mark-up or profit. Amounts receivable from customers in connection with billed and unbilled investigator fees, volunteer payments and other out-of-pocket pass-through costs are included in prepaid expenses and other current assets in the accompanying consolidated balance sheets and totaled $103.5 million and $88.9 million at June 30, 2014 and December 31, 2013, respectively. See Note 2 “Reimbursable Out-of-Pocket Expenses”.

Also included in prepaid expenses and other current assets are assets held for sale. Covance records long-lived assets as held for sale when a plan to sell the asset has been initiated and all other held for sale criteria have been satisfied. Assets classified as held for sale are recorded in other current assets on the consolidated balance sheet at the lower of their carrying value or fair value less cost to sell. During the first quarter of 2013, Covance completed the closure of its clinical pharmacology facility in Basel, Switzerland and initiated actions to sell that property. As a result, the $8.3 million carrying value of the property was reclassified from property and equipment to assets held for sale as of March 31, 2013. During the fourth quarter of 2013, Covance recorded an impairment charge of $2.3 million to reduce the carrying value of the Basel property to its then estimated fair market value less cost to sell as of December 31, 2013. During the second quarter of 2014, after entering into negotiations with a prospective buyer of the property, Covance recorded an additional impairment charge of $2.5 million to further reduce the carrying value of the Basel property to its current estimated fair market value less cost to sell as of June 30, 2014. In the fourth quarter of 2011, Covance completed the wind-down and transition of services at its toxicology facility in Vienna, Virginia and initiated actions to sell that property. As a result, the related carrying value of $27.0 million was reclassified from property and equipment to assets held for sale as of December 31, 2011. See Note 11.

Impairment of Long-Lived Assets

Covance reviews its long-lived assets, other than goodwill and other indefinite lived intangible assets, for impairment when events or changes in circumstances occur that indicate that the carrying value of the asset may not be recoverable. The assessment of possible impairment is based upon Covance’s judgment of its ability to recover the value of the asset from the expected future undiscounted cash flows of the related operations or the sale of the asset. Actual future cash flows may be greater or less than estimated. During the second quarter of 2014, Covance determined that the carrying values of its Chandler, Arizona and Basel, Switzerland properties, both included in the early development segment, were no longer fully recoverable from the cash flows expected from their sale, based upon changes to the Chandler property marketing plan and current negotiations with a prospective buyer of the Basel property. The valuation of the Chandler property was determined with the assistance of an independent third party appraiser. The valuation was based on a value in exchange approach, which considered comparable market data regarding land values and costs associated with the highest and best use of the property, which are Level 2 inputs under the fair value hierarchy. As such, Covance recorded an asset impairment charge of $45.7 million and $2.5 million, respectively, to reduce the carrying value of these assets to their estimated fair values as of June 30, 2014. In addition, during the second quarter of 2014, Covance determined it would not develop a parcel of land in Shanghai, China, the rights to which were purchased several years ago for potential future expansion. As such, Covance recorded an asset impairment charge of $4.4 million to write-off costs capitalized in connection with initial development activities on the land and reduce the carrying value of the land use rights to its estimated fair value as of June 30, 2014. Fair value of the land use rights, which are included in the early development segment, was based upon the contractual terms of the original land grant agreement. See Note 10.

Goodwill and Other Intangible Assets and Impairment

Goodwill represents costs in excess of the fair value of net tangible and identifiable net intangible assets acquired in business combinations. Covance performs an annual test for impairment of goodwill and other indefinite lived intangible assets during the fourth quarter. Covance tests goodwill for impairment at the reporting unit level only when, after completing a qualitative analysis, it is determined that it is more likely than not that the fair value of a reporting unit is below its carrying value. This test is performed by comparing the carrying value of the reporting unit to its fair value. Covance assesses fair value based upon its estimate of the present value of the future cash flows that it expects to be generated by the reporting unit. The most recent annual test for impairment performed for 2013 indicated that no reporting units were at significant risk for impairment and there were no events or changes in circumstances through June 30, 2014 that warranted a reconsideration of our impairment test results. See Note 6.

Revenue Recognition

Covance recognizes revenue either as services are performed or products are delivered, depending on the nature of the work contracted. Historically, a majority of Covance’s net revenues have been earned under contracts which range in duration from a few months to two years, but can extend in duration up to five years or longer. Covance also has committed minimum volume arrangements with certain clients with initial terms that generally range in duration from three to ten years. Underlying these arrangements are individual project contracts for the specific services to be provided. These arrangements enable our clients to secure our services in exchange for which they commit to purchase an annual minimum dollar value (“volume”) of services. Under these types of arrangements, if the annual minimum volume commitment is not reached, the client is required to pay Covance for the shortfall. Progress towards the achievement of annual minimum volume commitments is monitored throughout the year. Annual minimum commitment shortfalls are not included in net revenues until the amount has been determined and agreed to by the client.

Service contracts generally take the form of fee-for-service or fixed-price arrangements. In cases where performance spans multiple accounting periods, revenue is recognized as services are performed, measured on a proportional-performance basis, generally using output measures that are specific to the service provided. Examples of output measures in our early development segment include the number of slides read, dosings performed, or specimens prepared for preclinical laboratory services, or number of dosings or number of volunteers enrolled for clinical pharmacology. Examples of output measures in our late-stage development segment’s Phase II-IV clinical development service offering include among others, number of investigators enrolled, number of sites initiated, number of patients enrolled and number of monitoring visits completed. Revenue is determined by dividing the actual units of work completed by the total units of work required under the contract and multiplying that percentage by the total contract value. The total contract value, or total contractual payments, represents the aggregate contracted price for each of the agreed upon services to be provided. Covance does not have any contractual arrangements spanning multiple accounting periods where revenue is recognized on a proportional-performance basis under which the Company has earned more than an immaterial amount of performance-based revenue (i.e., potential additional revenue tied to specific deliverables or performance). Changes in the scope of work are common, especially under long-term contracts, and generally result in a change in contract value. Once the client has agreed to the changes in scope and renegotiated pricing terms, the contract value is amended and revenue is recognized, as described above. Estimates of costs to complete are made to provide, where appropriate, for losses expected on contracts. Costs are not deferred in anticipation of contracts being awarded, but instead are expensed as incurred.

Billing schedules and payment terms are generally negotiated on a contract-by-contract basis. In some cases, Covance bills the client for the total contract value in progress-based installments as certain non-contingent billing milestones are reached over the contract duration, such as, but not limited to, contract signing, initial dosing, investigator site initiation, patient enrollment or database lock. The term “billing milestone” relates only to a billing trigger in a contract whereby amounts become billable and payable in accordance with a negotiated predetermined billing schedule throughout the term of a project. These billing milestones are not performance-based (i.e., potential additional arrangement consideration tied to specific deliverables or performance). In other cases, billing and payment terms are tied to the passage of time (e.g., monthly billings). In either case, the total contract value and aggregate amounts billed to the client would be the same at the end of the project. While Covance attempts to negotiate terms that provide for billing and payment of services prior or within close proximity to the provision of services, this is not always the case, as evidenced by fluctuations in the levels of unbilled receivables and unearned revenue from period to period. While a project is ongoing, cash payments are not necessarily representative of aggregate revenue earned at any particular point in time, as revenues are recognized when services are provided, while amounts billed and paid are in accordance with the negotiated billing and payment terms.

In some cases, payments received are in excess of revenue recognized. For example, a contract invoicing schedule may provide for an upfront payment of 10% of the full contract value upon contract signing, but at the time of signing, performance of services has not yet begun, and therefore, no revenue has yet been recognized. Payments received in advance of services being provided, such as in this example, are deferred as unearned revenue on the balance sheet. As the contracted services are subsequently performed and the associated revenue is recognized, the unearned revenue balance is reduced by the amount of revenue recognized during the period.

In other cases, services may be provided and revenue is recognized before the client is invoiced. In these cases, revenue recognized will exceed amounts billed, and the difference, representing an unbilled receivable, is recorded for this amount which is currently unbillable to the customer pursuant to contractual terms. Once the client is invoiced, the unbilled services are reduced for the amount billed, and a corresponding account receivable is recorded. All unbilled services are billable to customers within one year from the respective balance sheet date.

Most contracts are terminable by the client, either immediately or upon notice. These contracts often require payment to Covance of expenses to wind down the study or project, fees earned to date and, in some cases, a termination fee or a payment to Covance of some portion of the fees or profits that could have been earned by Covance under the contract if it had not been terminated early. Termination fees are included in net revenues when realization is assured. In connection with the management of multi-site clinical trials, Covance pays on behalf of its customers fees to investigators, volunteers and other out-of-pocket costs (such as for travel, printing, meetings, couriers, etc.), for which it is reimbursed at cost, without mark-up or profit. Investigator fees are not reflected in total revenues or expenses where Covance acts in the capacity of an agent on behalf of the pharmaceutical company sponsor, passing through these costs without risk or reward to Covance. All other out-of-pocket costs are included in total revenues and expenses.

Taxes

Covance uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the expected future tax consequences of differences between the carrying amounts of assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the temporary differences are expected to reverse. The effect on deferred taxes of a change in enacted tax rates is recognized in income in the period when the change is effective.

The Company recognizes a tax benefit from an uncertain tax position only if the Company believes it is more likely than not to be sustained upon examination based on the technical merits of the position. The amount of the accrual for which an exposure exists is measured as the largest amount of benefit determined on a cumulative probability basis that the Company believes is more likely than not to be realized upon ultimate settlement of the position. Components of the reserve are classified as either a current or long-term liability in the consolidated balance sheet based on when the Company expects each of the items to be settled. Covance accrues interest and penalties in relation to unrecognized tax benefits as a component of income tax expense.

As of June 30, 2014 and December 31, 2013, the balance of the reserve for unrecognized tax benefits was $9.2 million, including accrued interest of $0.8 million, and $9.0 million, including interest of $0.6 million, respectively, which is recorded as a long-term liability in other liabilities on the consolidated balance sheet. This reserve relates to exposures for income tax matters such as transfer pricing, nexus and deemed income.

The Company also maintains a tax reserve related to exposures for non-income tax matters including value-added tax, state sales and use and other taxes. The balance of this reserve was $0.7 million and $1.1 million at June 30, 2014 and December 31, 2013, respectively, and is recorded as a current liability in accrued expenses and other current liabilities on the consolidated balance sheet.

While Covance believes it has identified all reasonably identifiable exposures and the reserve it has established for identifiable exposures is appropriate under the circumstances, it is possible that additional exposures exist and that exposures may be settled at amounts different than the amounts reserved. It is also possible that changes in facts and circumstances could cause Covance to either materially increase or reduce the carrying amount of its tax reserve.

Covance’s historical policy has been to leave its unremitted foreign earnings invested indefinitely outside the United States. Covance intends to continue to leave its unremitted foreign earnings invested indefinitely outside the United States. As a result, taxes have not been provided on any of the remaining accumulated foreign unremitted earnings as of June 30, 2014.

Accumulated Other Comprehensive Income

Covance’s accumulated other comprehensive income is comprised of foreign currency translation adjustments and actuarial gains (losses) and prior service costs in connection with its defined benefit pension and other post-retirement plans, each recorded and presented net of tax. The components of and changes in accumulated other comprehensive income are as follows:

	Foreign Currency Translation Adjustments		Defined Benefit Plans			Accumulated Other Comprehensive Income
Balance at December 31, 2013	$	67,456	$	(41,710	)	$	25,746
Other comprehensive income, net of tax, before reclassifications	11,198		¾			11,198
Amounts reclassified from accumulated other comprehensive income, net of tax	¾		764			764
Net current-period other comprehensive income, net of tax	11,198		764			11,962
Balance at June 30, 2014	$	78,654	$	(40,946	)	$	37,708

Amounts reclassified from accumulated other comprehensive income, net of tax, represents the amortization of actuarial losses and prior service credits to net periodic pension cost of $1.0 million, net of tax of $0.2 million. See Note 7.

Reimbursable Out-of-Pocket Expenses

As discussed in Note 2 “Prepaid Expenses and Other Current Assets”, Covance pays on behalf of its customers fees to investigators, volunteers and other out-of-pocket costs for which the Company is reimbursed at cost, without mark-up or profit. Amounts paid to volunteers and other out-of-pocket costs are reflected in operating expenses, while the reimbursements received are reflected in revenues in the consolidated statements of income. Covance excludes from revenue and expense in the consolidated statements of income fees paid to investigators and the associated reimbursement since Covance acts as an agent on behalf of the pharmaceutical company sponsors with regard to investigator payments.

Stock-Based Compensation

The Company sponsors several stock-based compensation plans pursuant to which non-qualified stock options and restricted stock awards are granted to eligible employees. These plans are described more fully in Note 8 herein and Note 9 to our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2013. The grant-date fair value of awards expected to vest is expensed on a straight-line basis over the vesting period of the related awards.

Defined Benefit Pension Plans

The Company sponsors various pension and other post-retirement benefit plans. These plans are described more fully in Note 7 herein and Note 8 to our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2013. The measurement of the related benefit obligations and the net periodic benefit costs recorded each year are based upon actuarial computations, which require management’s judgment as to certain assumptions. These assumptions include the discount rates to use in computing the present value of the benefit obligations and the net periodic benefit costs, the expected future rate of salary increases (for pay-related plans) and the expected long-term rate of return on plan assets (for funded plans). The discount rates are derived based on a hypothetical yield curve represented by a series of annualized individual discount rates. The expected long-term rate of return on plan assets is based on the target asset allocation and the average expected rate of growth for the asset classes invested. The average expected rate of growth is derived from a combination of historic returns, current market indicators, the expected risk premium for each asset class and the opinion of professional advisors. Liabilities related to all of Covance’s pension and other post-retirement benefit plans are measured as of December 31.

Earnings Per Share (“EPS”)

Basic EPS is computed by dividing net income available to common stockholders by the weighted average number of shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS, except that the denominator is increased to include the number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued; computed under the treasury stock method.

In computing diluted EPS for the three months ended June 30, 2014 and 2013, the denominator was increased by 1,993,650 shares and 2,218,022 shares, respectively, and for the six months ended June 30, 2014 and 2013, the denominator was increased by 2,151,095 shares and 2,164,373 shares, respectively, representing the dilutive effect of all unvested restricted shares as well as those stock options outstanding at June 30, 2014 and 2013, with exercise prices less than the average market price of Covance’s common stock during each respective period. Excluded from the computation of diluted EPS for the three months ended June 30, 2014 were options to purchase 351,411 shares of common stock at prices ranging from $91.80 to $102.80 per share because the exercise prices of such options were greater than the average market price of Covance’s common stock during this period. Excluded from the computation of diluted EPS for the six months ended June 30, 2014 were options to purchase 256,262 shares of common stock at prices ranging from $91.80 to $102.80 per share because the exercise prices of such options were greater than the average market price of Covance’s common stock during this period. Excluded from the computation of diluted EPS for the three months ended June 30, 2013 were options to purchase 213,695 shares of common stock at prices ranging from $77.72 to $94.34 per share because the exercise prices of such options were greater than the average market price of Covance’s common stock during this period. Excluded from the computation of diluted EPS for the six months ended June 30, 2013 were options to purchase 214,112 shares of common stock at prices ranging from $73.32 to $94.34 per share because the exercise prices of such options were greater than the average market price of Covance’s common stock during this period.

Supplemental Cash Flow Information

Cash paid for interest for the six month periods ended June 30, 2014 and 2013 was $5.9 million and $2.6 million, respectively. Cash paid for income taxes for the six month periods ended June 30, 2014 and 2013 totaled $13.8 million and $19.2 million, respectively. The change in income taxes payable in the consolidated statement of cash flows for the six months ended June 30, 2014 and 2013 includes as an operating cash outflow the excess tax benefit received from the exercise of non-qualified stock options of $7.8 million and $2.3 million, respectively (a corresponding cash inflow of $7.8 million and $2.3 million, respectively, for both periods has been included in financing cash flows).

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). The core principle of ASU 2014-09 is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. ASU 2014-09 is effective retrospectively for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early application is not permitted. Covance will be required to adopt ASU 2014-09 no later than the quarter beginning January 1, 2017. Covance is currently in the process of evaluating ASU 2014-09 and has not yet determined the impact, if any, ASU 2014-09 will have on its consolidated results of operations or financial position.

In April 2014, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (“ASU 2014-08”). ASU 2014-08 changes the requirements for reporting discontinued operations in that only the disposal of a component of an entity or a group of components of an entity, or a business activity classified as held for sale, that represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results will be reported as discontinued operations. The ASU also expands the disclosure requirements for discontinued operations and adds new disclosures about the disposal of an individually significant component of an entity that does not qualify as discontinued operations. ASU 2014-08 is effective prospectively for fiscal years beginning after December 15, 2014. Covance will be required to adopt ASU 2014-08 no later than the quarter beginning January 1, 2015. As the ASU is primarily focused on presentation and disclosure, it is not expected to have an impact on Covance’s consolidated results of operations or financial position.

Subsequent Events

Subsequent events are defined as those events or transactions that occur after the balance sheet date, but before the financial statements are filed with the Securities and Exchange Commission. See Note 13.