The standby Premium Pay rate is determined by Human Resources and forwarded to the civilian payroll office on the SF-50. Hazardous Duty and Environmental Differentials. Environmental Differential Pay (EDP) is paid for exposure to various degrees of hazards, physical hardships and working conditions.
A cusp is a point at which two branches of a curve meet such that the tangents of each branch are equal. The above plot shows the semicubical parabola curve, which has a cusp at the origin. cusp is a point at which two branches of a curve meet such that the tangents of each branch are equal. The above plot shows the semicubical parabola curve, which has a cusp at the origin.
on the cusp. 1  1. On the threshold or verge of a development or action: an actor on the cusp of becoming a star. 2  2. At the dividing line or border of two conditions or categories: an artist on the cusp between Victorianism and modernism.