A locality rate is considered to be an employee's rate of basic pay only for the purpose of computing or applying—

Retirement deductions, contributions, and benefits under 5 U.S.C. chapters 83 and 84;

Life insurance premiums and benefits under 5 U.S.C. chapter 87;

Premium pay under 5 U.S.C. chapter 55, subchapter V, and 5 CFR part 550, subparts A and I (including the computation of limitations on premium pay);

Severance pay under 5 U.S.C. 5595 and 5 CFR part 550, subpart G;

Advances in pay under 5 U.S.C. 5524a and 5 CFR part 550, subpart B;

Post differentials under 5 U.S.C. 5925(a) and danger pay allowances under 5 U.S.C. 5928 for an employee temporarily working in a foreign area when the employee's official worksite is located in a locality pay area;

Nonforeign area cost-of-living allowances and post differentials under 5 U.S.C. 5941 and 5 CFR part 591, subpart B;

Recruitment, relocation, and retention incentives, supervisory differentials, and extended assignment incentives under 5 U.S.C. chapter 57, subchapter IV, and 5 CFR part 575;

Performance-based cash awards under 5 U.S.C. 4505a and 5 CFR part 451, subpart A, when such awards are computed as a percentage of an employee's rate of basic pay;

GS pay administration provisions (e.g., GS promotion provisions) to the extent provided in subpart B of this part;

Pay administration provisions for prevailing rate employees which consider rates of basic pay under the GS pay system in setting pay (except as otherwise provided in 5 CFR part 532), subject to the requirement that, if the employee's actual locality rate would not apply at the official worksite for the prevailing rate position, that locality rate must be converted to a corresponding rate on the locality rate schedule for that official worksite;

Lump-sum payments under 5 CFR part 550, subpart L, for accumulated and accrued annual leave;

Grade and pay retention under 5 U.S.C. chapter 53, subchapter VI, to the extent provided by 5 CFR part 536;

Other provisions as specified in other statute or OPM regulations; and

Payments or benefits equivalent to those listed in this section under other legal authority, as determined by the head of the agency or other authorized official responsible for administering such payments or benefits.