An adjustment made under this section in a year shall provide all eligible members with an increase in the monthly basic pay that is the percentage (rounded to the nearest one-tenth of one percent) by which the ECI for the base quarter of the year before the preceding year exceeds the ECI for the base quarter of the second year before the preceding calendar year (if at all).

Notwithstanding paragraph (1), but subject to subsection (d), the percentage of the adjustment taking effect under this section during each of fiscal years 2004, 2005, and 2006, shall be one-half of one percentage point higher than the percentage that would otherwise be applicable under such paragraph.

The total daily equivalent amount of the elements of compensation described in paragraph (3), together with other pay and allowances under this title, to be paid to a member of the uniformed services who is temporarily assigned to duty away from the member’s permanent duty station or to duty under field conditions at the member’s permanent duty station shall not be less, for any day during the assignment period, than the total amount, for the day immediately preceding the date of the assignment, of the elements of compensation and other pay and allowances of the member.

Paragraph (1) shall not apply with respect to an element of compensation or other pay or allowance of a member during an assignment described in such paragraph to the extent that the element of compensation or other pay or allowance is reduced or terminated due to circumstances unrelated to the assignment.

If, because of national emergency or serious economic conditions affecting the general welfare, the President considers the pay adjustment which would otherwise be required by this section in any year to be inappropriate, the President shall prepare and transmit to Congress before September 1 of the preceding year a plan for such alternative pay adjustments as the President considers appropriate, together with the reasons therefor.

In evaluating an economic condition affecting the general welfare under this subsection, the President shall consider pertinent economic measures including the Indexes of Leading Economic Indicators, the Gross Domestic Product, the unemployment rate, the budget deficit, the Consumer Price Index, the Producer Price Index, the Employment Cost Index, and the Implicit Price Deflator for Personal Consumption Expenditures.

The President shall include in the plan submitted to Congress under paragraph (1) an assessment of the impact that the alternative pay adjustments proposed in the plan would have on the Government’s ability to recruit and retain well-qualified persons for the uniformed services.