41 CFR § 102-33.130
If we hire CAS, what are our management responsibilities?
June 9, 2020
If you hire CAS, you are responsible for—
(a) Establishing agency-specific Flight Program Standards, as defined in §§102-33.140 through 102-33.185, as applicable, and requiring compliance with these standards in your contracts and agreements;
(b) Accounting for the cost of your aircraft and services hired as CAS;
(c) Accounting for the use of your aircraft hired as CAS; and
(d) Reporting the cost and usage data for your CAS hires (for reporting requirements, see subpart E of this part).