CFR›Title 43›Subtitle B›Chapter II›Part 3130›Subpart 3137›Subject Group Development ContainsSections 3137.40–3137.41CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Sections 3137.40 § 3137.40 What initial development obligations must I define in a unit agreement? 3137.41 § 3137.41 What continuing development obligations must I define in a unit agreement? Previous Change in Ownership Change in Ownership Next Development Requirements Development Requirements