CFR›Title 2›Subtitle B›Chapter XXIX›Part 2900›Subpart E ContainsSections 2900.16–2900.19CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart E—Cost Principles Sections 2900.16 § 2900.16 Prior written approval (prior approval). 2900.17 § 2900.17 Adjustment of negotiated IDC rates. 2900.18 § 2900.18 Contingency provisions. 2900.19 § 2900.19 Student activity costs. Previous D Subpart D—Post Federal Award Requirements Next F Subpart F—Audit Requirements