Common use of Notice to Governmental Authority Clause in Contracts

Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act. Schedule 1 Calculating ROIC and EPS Except as otherwise described below, the component values used to calculate ROIC and EPS will be determined in accordance with U.S. generally accepted accounting principles excluding (1) expenses associated with the acquisition or disposition of any asset, (2) expenses associated with company restructuring activity, (3) any pension accounting mark-to-market losses, (4) acquisition related amortization resulting from an acquisition that occurs during the Performance Period, (5) losses from divestitures, (6) impairments of tangible and intangible assets, (7) losses in respect of legal proceedings and dispute resolutions, (8) losses from tax valuation allowances, (9) fluctuations in foreign currency exchange rates impacting translation of foreign earnings into USD, and (10) losses in respect of an Act of God/Force Majeure matter. The performance goals or the component values will also be adjusted to reflect the negative effects from applicable changes in accounting standards / policies or tax regulations after the date of this meeting. No adjustment herein shall limit any discretion provided by the Plan to increase or reduce the amount of a Participant’s Final Award as computed hereunder. Return on Invested Capital (ROIC) The vested percentage applicable to ROIC will be determined based on BWXT’s average annual ROIC (as calculated below) (“Average ROIC”) for the Performance Period in accordance with the following schedule: Average ROIC ROIC Vested Percentage xx.x% 50% xx.x% 100% xx.x% 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to ROIC will be 0% if the Average ROIC for the Performance Period is below xx.x%. In no event will the vested percentage applicable to ROIC be greater than 200%. ROIC will be calculated quarterly and the ROIC for any calendar year during the Performance Period will equal the sum of the four applicable quarterly ROIC calculations. Average ROIC will equal the sum of the three annual ROIC calculations during the Performance Period divided by three. For purposes of this Agreement, the term “ROIC” is a ratio measure of BWXT’s net income in relation to BWXT’s invested capital, using the formula set forth below. For purposes of determining ROIC, net income is pre-tax income less tax expense calculated in accordance with U.S. generally accepted accounting principles. Invested capital is BWXT’s total assets less current liabilities. Current liabilities include any liabilities that are due within one calendar year and will be defined based on BWXT’s consolidated balance sheet applicable to the applicable period. Net Income = Pre-tax Income - Tax Expense Invested Capital Total Assets - Current Liabilities Diluted Earnings Per Share (EPS) The vested percentage applicable to EPS will be determined based on BWXT’s cumulative EPS (as calculated below) (“Cumulative EPS”) for the Performance Period in accordance with the following schedule: Cumulative EPS EPS Vested Percentage $x.xx 50% $x.xx 100% $x.xx 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to EPS will be 0% if the Cumulative EPS for the Performance Period is below $x.xx. In no event will the vested percentage applicable to EPS be greater than 200%. EPS will be calculated for each calendar year during the Performance Period and Cumulative EPS for the Performance Period will equal the sum of the three applicable annual EPS calculations. For purposes of this Agreement, the term “EPS” means BWXT’s net income attributable to stockholders of common stock for the applicable period divided by BWXT’s weighted average diluted shares outstanding for the applicable period. For purposes of determining EPS, net income attributable to stockholders of common stock is defined as “Net Income Attributable to BWX Technologies, Inc.” on BWXT’s Consolidated Statement of Income. Diluted shares outstanding will include all basic shares outstanding and any other dilutive securities for the period. If any securities are dilutive, the impact on the number of outstanding shares will be included in the denominator and the related income statement impact of the security will be removed from the numerator. Diluted EPS = Net Income to Common Shareholders + Net Income Impact of Dilutive Securities WASCO assuming all Dilutive Securities are converted to Common Stock WACSO represents weighted average common stock outstanding. APPENDIX A

Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act. Schedule 1 Calculating ROIC and EPS Except as otherwise described below, the component values used to calculate ROIC and EPS will be determined in accordance with U.S. generally accepted accounting principles excluding (1) expenses associated with the acquisition or disposition of any asset, (2) expenses associated with company restructuring activity, (3) any pension accounting mark-to-market losses, (4) acquisition related amortization resulting from an acquisition that occurs during the Performance Period, (5) losses from divestitures, (6) impairments of tangible and intangible assets, (7) losses in respect of legal proceedings and dispute resolutions, and (8) losses from tax valuation allowances, (9) fluctuations in foreign currency exchange rates impacting translation of foreign earnings into USD, and (10) losses in respect of an Act of God/Force Majeure matter. The performance goals or the component values will also be adjusted to reflect the negative effects from applicable changes in accounting standards / policies or tax regulations after the date of this meeting. No adjustment herein shall limit any discretion provided by the Plan to increase or reduce the amount of a Participant’s Final Award as computed hereunder. Return on Invested Capital (ROIC) The vested percentage applicable to ROIC will be determined based on BWXT’s average annual ROIC (as calculated below) (“Average ROIC”) for the Performance Period in accordance with the following schedule: Average ROIC ROIC Vested Percentage xx.x% 50% xx.x% 100% xx.x% 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to ROIC will be 0% if the Average ROIC for the Performance Period is below xx.x%. In no event will the vested percentage applicable to ROIC be greater than 200%. ROIC will be calculated quarterly and the ROIC for any calendar year during the Performance Period will equal the sum of the four applicable quarterly ROIC calculations. Average ROIC will equal the sum of the three annual ROIC calculations during the Performance Period divided by three. For purposes of this Agreement, the term “ROIC” is a ratio measure of BWXT’s net income in relation to BWXT’s invested capital, using the formula set forth below. For purposes of determining ROIC, net income is pre-tax income less tax expense calculated in accordance with U.S. generally accepted accounting principles. Invested capital is BWXT’s total assets less current liabilities. Current liabilities include any liabilities that are due within one calendar year and will be defined based on BWXT’s consolidated balance sheet applicable to the applicable period. Net Income = Pre-tax Income - Tax Expense Invested Capital Total Assets - Current Liabilities Diluted Earnings Per Share (EPS) The vested percentage applicable to EPS will be determined based on BWXT’s cumulative EPS (as calculated below) (“Cumulative EPS”) for the Performance Period in accordance with the following schedule: Cumulative EPS EPS Vested Percentage $x.xx xx.x 50% $x.xx xx.x 100% $x.xx xx.x 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to EPS will be 0% if the Cumulative EPS for the Performance Period is below $x.xxxx.x. In no event will the vested percentage applicable to EPS be greater than 200%. EPS will be calculated for each calendar year during the Performance Period and Cumulative EPS for the Performance Period will equal the sum of the three applicable annual EPS calculations. For purposes of this Agreement, the term “EPS” means BWXT’s net income attributable to stockholders of common stock for the applicable period divided by BWXT’s weighted average diluted shares outstanding for the applicable period. For purposes of determining EPS, net income attributable to stockholders of common stock is defined as “Net Income Attributable to BWX Technologies, Inc.” on BWXT’s Consolidated Statement of Income. Diluted shares outstanding will include all basic shares outstanding and any other dilutive securities for the period. If any securities are dilutive, the impact on the number of outstanding shares will be included in the denominator and the related income statement impact of the security will be removed from the numerator. Diluted EPS = Net Income to Common Shareholders + Net Income Impact of Dilutive Securities WASCO WACSO assuming all Dilutive Securities are converted to Common Stock WACSO represents weighted average common stock outstanding. APPENDIX A

Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act. Schedule 1 Calculating ROIC and EPS Except as otherwise described below, the component values used to calculate ROIC and EPS will be determined in accordance with U.S. generally accepted accounting principles excluding (1) expenses associated with the acquisition or disposition of any asset, (2) expenses associated with company restructuring activity, (3) any pension accounting mark-to-market losses, (4) acquisition related amortization resulting from an acquisition that occurs during the Performance Period, (5) losses from divestitures, (6) impairments of tangible and intangible assets, (7) losses in respect of legal proceedings and dispute resolutions, (8) the effect of the Company’s repurchases of its common stock (for purposes of calculating EPS only), and (9) losses from tax valuation allowances, (9) fluctuations in foreign currency exchange rates impacting translation of foreign earnings into USD, and (10) losses in respect of an Act of God/Force Majeure matter. The performance goals or the component values will also be adjusted to reflect the negative effects from applicable changes in accounting standards / policies or tax regulations after the date of this meeting. No adjustment herein shall limit any discretion provided by the Plan to increase or reduce the amount of a Participant’s Final Award as computed hereunder. Return on Invested Capital (ROIC) The vested percentage applicable to ROIC will be determined based on BWXT’s average annual ROIC (as calculated below) (“Average ROIC”) for the Performance Period in accordance with the following schedule: Average ROIC ROIC Vested Percentage xx.x% ___% 50% xx.x% ___% 100% xx.x% ___% 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to ROIC will be 0% if the Average ROIC for the Performance Period is below xx.x%___%. In no event will the vested percentage applicable to ROIC be greater than 200%. ROIC will be calculated quarterly and the ROIC for any calendar year during the Performance Period will equal the sum of the four applicable quarterly ROIC calculations. Average ROIC will equal the sum of the three annual ROIC calculations during the Performance Period divided by three. For purposes of this Agreement, the term “ROIC” is a ratio measure of BWXT’s net income in relation to BWXT’s invested capital, using the formula set forth below. For purposes of determining ROIC, net income is pre-tax income less tax expense calculated in accordance with U.S. generally accepted accounting principles. Invested capital is BWXT’s total assets less current liabilities. Current liabilities include any liabilities that are due within one calendar year and will be defined based on BWXT’s consolidated balance sheet applicable to the applicable period. Net Income = Pre-tax Income - Tax Expense Invested Capital Total Assets - Current Liabilities Diluted Earnings Per Share (EPS) The vested percentage applicable to EPS will be determined based on BWXT’s cumulative EPS (as calculated below) (“Cumulative EPS”) for the Performance Period in accordance with the following schedule: Cumulative EPS EPS Vested Percentage $x.xx ___ 50% $x.xx ___ 100% $x.xx ___ 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to EPS will be 0% if the Cumulative EPS for the Performance Period is below $x.xx___. In no event will the vested percentage applicable to EPS be greater than 200%. EPS will be calculated for each calendar year during the Performance Period and Cumulative EPS for the Performance Period will equal the sum of the three applicable annual EPS calculations. For purposes of this Agreement, the term “EPS” means BWXT’s net income attributable to stockholders of common stock for the applicable period divided by BWXT’s weighted average diluted shares outstanding for the applicable period. For purposes of determining EPS, net income attributable to stockholders of common stock is defined as “Net Income Attributable to BWX Technologies, Inc.” on BWXT’s Consolidated Statement of Income. Diluted shares outstanding will include all basic shares outstanding and any other dilutive securities for the period. If any securities are dilutive, the impact on the number of outstanding shares will be included in the denominator and the related income statement impact of the security will be removed from the numerator. Diluted EPS = Net Income to Common Shareholders + Net Income Impact of Dilutive Securities WASCO WACSO assuming all Dilutive Securities are converted to Common Stock WACSO represents weighted average common stock outstanding. APPENDIX A

Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act. Schedule 1 Calculating ROIC and EPS Except as otherwise described below, the component values used to calculate ROIC and EPS will be determined in accordance with U.S. generally accepted accounting principles excluding (1) expenses associated with the acquisition or disposition of any asset, (2) expenses associated with company restructuring activity, (3) any pension accounting markxxxx-to-market losses, (4) acquisition related amortization resulting from an acquisition that occurs during the Performance Period, (5) losses from divestitures, (6) impairments of tangible and intangible assets, (7) losses in respect of legal proceedings and dispute resolutions, and (8) losses from tax valuation allowances, (9) fluctuations in foreign currency exchange rates impacting translation of foreign earnings into USD, and (10) losses in respect of an Act of God/Force Majeure matter. The performance goals or the component values will also be adjusted to reflect the negative effects from applicable changes in accounting standards / policies or tax regulations after the date of this meeting. No adjustment herein shall limit any discretion provided by the Plan to increase or reduce the amount of a Participant’s Final Award as computed hereunder. Return on Invested Capital (ROIC) The vested percentage applicable to ROIC will be determined based on BWXT’s average annual ROIC (as calculated below) (“Average ROIC”) for the Performance Period in accordance with the following schedule: Average ROIC ROIC Vested Percentage xx.x% 50% xx.x% 100% xx.x% 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to ROIC will be 0% if the Average ROIC for the Performance Period is below xx.x%. In no event will the vested percentage applicable to ROIC be greater than 200%. ROIC will be calculated quarterly and the ROIC for any calendar year during the Performance Period will equal the sum of the four applicable quarterly ROIC calculations. Average ROIC will equal the sum of the three annual ROIC calculations during the Performance Period divided by three. For purposes of this Agreement, the term “ROIC” is a ratio measure of BWXT’s net income in relation to BWXT’s invested capital, using the formula set forth below. For purposes of determining ROIC, net income is pre-tax income less tax expense calculated in accordance with U.S. generally accepted accounting principles. Invested capital is BWXT’s total assets less current liabilities. Current liabilities include any liabilities that are due within one calendar year and will be defined based on BWXT’s consolidated balance sheet applicable to the applicable period. Net Income = Pre-tax Income - Tax Expense Invested Capital Total Assets - Current Liabilities Diluted Earnings Per Share (EPS) The vested percentage applicable to EPS will be determined based on BWXT’s cumulative EPS (as calculated below) (“Cumulative EPS”) for the Performance Period in accordance with the following schedule: Cumulative EPS EPS Vested Percentage $x.xx 50% $x.xx 100% $x.xx 200% Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to EPS will be 0% if the Cumulative EPS for the Performance Period is below $x.xx. In no event will the vested percentage applicable to EPS be greater than 200%. EPS will be calculated for each calendar year during the Performance Period and Cumulative EPS for the Performance Period will equal the sum of the three applicable annual EPS calculations. For purposes of this Agreement, the term “EPS” means BWXT’s net income attributable to stockholders of common stock for the applicable period divided by BWXT’s weighted average diluted shares outstanding for the applicable period. For purposes of determining EPS, net income attributable to stockholders of common stock is defined as “Net Income Attributable to BWX Technologies, Inc.” on BWXT’s Consolidated Statement of Income. Diluted shares outstanding will include all basic shares outstanding and any other dilutive securities for the period. If any securities are dilutive, the impact on the number of outstanding shares will be included in the denominator and the related income statement impact of the security will be removed from the numerator. Diluted EPS = Net Income to Common Shareholders + Net Income Impact of Dilutive Securities WASCO WACSO assuming all Dilutive Securities are converted to Common Stock WACSO represents weighted average common stock outstanding. APPENDIX A