Note 1.

General

The accompanying unaudited consolidated financial statements of First National Corporation (the Company) and its subsidiaries, including First Bank (the Bank), have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP. All significant intercompany balances and transactions have been eliminated. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments and reclassifications of a normal and recurring nature considered necessary to present fairly the financial positions at March 31, 2012 and December 31, 2011, the results of operations, cash flows and changes in shareholders' equity for the three months ended March 31, 2012 and 2011. The statements should be read in conjunction with the consolidated financial statements and related notes included in the Annual Report on Form 10-K for the year ended December 31, 2011. Operating results for the three month period ended March 31, 2012 are not necessarily indicative of the results that may be expected for the year ending December 31, 2012.

Recent Accounting Pronouncements

In April 2011, the FASB issued ASU 2011-03, "Transfers and Servicing (Topic 860) – Reconsideration of Effective Control for Repurchase Agreements." The amendments in this ASU removed from the assessment of effective control (1) the criterion requiring the transferor to have the ability to repurchase or redeem the financial assets on substantially the agreed terms, even in the event of default by the transferee and (2) the collateral maintenance implementation guidance related to that criterion. The amendments in this ASU were effective for the first interim or annual period beginning on or after December 15, 2011. The guidance should be applied prospectively to transactions or modifications of existing transactions that occurred on or after the effective date. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements.

In May 2011, the FASB issued ASU 2011-04, "Fair Value Measurement (Topic 820) – Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs." This ASU is the result of joint efforts by the FASB and International Accounting Standards Board (IASB) to develop a single, converged fair value framework on how (not when) to measure fair value and what disclosures to provide about fair value measurements. The ASU is largely consistent with existing fair value measurement principles in U.S. GAAP (Topic 820), with many of the amendments made to eliminate unnecessary wording differences between U.S. GAAP and International Financial Reporting Standards (IFRS). The amendments were effective for interim and annual periods beginning after December 15, 2011 with prospective application. The Company has included the required disclosures in its consolidated financial statements.

In June 2011, the FASB issued ASU 2011-05, "Comprehensive Income (Topic 220) – Presentation of Comprehensive Income." The objective of this ASU is to improve the comparability, consistency and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income by eliminating the option to present components of other comprehensive income as part of the statement of changes in shareholders' equity. The amendments require that all non-owner changes in shareholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The single statement of comprehensive income should include the components of net income, a total for net income, the components of other comprehensive income, a total for other comprehensive income, and a total for comprehensive income. In the two-statement approach, the first statement should present total net income and its components followed consecutively by a second statement that should present all the components of other comprehensive income, a total for other comprehensive income, and a total for comprehensive income. The amendments do not change the items that must be reported in other comprehensive income, the option for an entity to present components of other comprehensive income either net of related tax effects or before related tax effects, or the calculation or reporting of earnings per share. The amendments in this ASU should be applied retrospectively. The amendments were effective for fiscal years and interim periods within those years beginning after December 15, 2011. The Company has included the required disclosures in its consolidated financial statements.

In December 2011, the FASB issued ASU 2011-11, "Balance Sheet (Topic 210) – Disclosures about Offsetting Assets and Liabilities." This ASU requires entities to disclose both gross information and net information about both instruments and transactions eligible for offset in the balance sheet and instruments and transactions subject to an agreement similar to a master netting arrangement. An entity is required to apply the amendments for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the disclosures required by those amendments retrospectively for all comparative periods presented. The Company does not expect the adoption of ASU 2011-11 to have a material impact on its consolidated financial statements.

In December 2011, the FASB issued ASU 2011-12, "Comprehensive Income (Topic 220) – Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05." The amendments are being made to allow the Board time to re-deliberate whether to present on the face of the financial statements the effects of reclassifications out of accumulated other comprehensive income on the components of net income and other comprehensive income for all periods presented. While the Board is considering the operational concerns about the presentation requirements for reclassification adjustments and the needs of financial statement users for additional information about reclassification adjustments, entities should continue to report reclassifications out of accumulated other comprehensive income consistent with the presentation requirements in effect before ASU 2011-05. All other requirements in ASU 2011-05 are not affected by ASU 2011-12, including the requirement to report comprehensive income either in a single continuous financial statement or in two separate but consecutive financial statements. Public entities should apply these requirements for fiscal years, and interim periods within those years, beginning after December 15, 2011.