“Notwithstanding the amendments made by this Act [enacting this section and amending section 301 of this title], an officer who was entitled to incentive pay under section 301(a)(1) of title 37, United States Code, on May 31, 1973, or on the day before the effective date of this Act [June 1, 1974], if otherwise qualified on the day before the effective date of this Act, is entitled to monthly incentive pay as prescribed in either clause (1) or (2) of this section, as follows:“(1) If he is credited with 6 or less years of aviation service as an officer, and with less than 12 years of service as an officer, he is entitled to monthly incentive pay either—“(A) in the amount he was receiving under section 301(b) of that title on May 31, 1973, or on the day before the effective date of this Act [June 1, 1974], but with no entitlement after either of those dates, as applicable, to any longevity pay increases or increases resulting from promotion to a higher grade until such time as the rate to which he is entitled under section 301a(b) of that title, as added by this Act, is equal to or greater than the amount he was receiving under that section on May 31, 1973, or on the day before the effective date of this Act, and thereafter his entitlement is as prescribed by that section as added by this Act; or
“(B) at the rate prescribed by section 301a(b) of that title, as added by this Act;
whichever is greater. However, an officer who is promoted and assigned to pay grade O–7 or above during the 36-month period following the effective date of this Act [June 1, 1974] may not receive more than the rate which existed for that pay grade, as appropriate, prior to June 1, 1973.
“(2) If he is credited with more than 6 years of aviation service as an officer, or less than 6 years of aviation service but more than 12 years of service as an officer, he may receive monthly incentive pay at the rate prescribed in the table in section 301a(b) of title 37, United States Code, as added by this Act, that is applicable to him, or $165, whichever is greater, for not more than 36 months after the effective date of this Act [June 1, 1974], notwithstanding the provisions of section 301a(a) of that title, as added by this Act, with respect to prescribed operational flying duties (including flight training but excluding proficiency flying). However, under this clause, an officer who is assigned to the pay grade O–7 on the effective date of this Act, or is promoted to the pay grade O–7 during the 36-month period following the effective date of this Act, may not receive more than $160 per month while assigned to that grade.
The amount to which a reserve officer who is entitled to compensation under section 206 of title 37, United States Code, is entitled under this section is governed by the provisions of section 301a(d) of that title, as added by this Act.”