30 CFR § 885.17 - How can my grant be amended?
(a) A grant amendment is a change of terms or conditions of the grant agreement. An amendment may be initiated by you or by us.
(b) You must promptly notify us in writing, or we must promptly notify you in writing, of events or proposed changes that may require a grant amendment.
(c) All requirements and procedures for grant amendments follow 43 CFR part 12.
(d) We must award your amended grant agreement within 20 days of receiving your request.