45 CFR § 1303.48
Grantee limitations on federal interest
April 14, 2021
(a) A grantee cannot mortgage, use as collateral for a credit line or for other loan obligations, or, sell or transfer to another party, a facility, real property, or a modular unit it has purchased, constructed or renovated with Head Start funds, without the responsible HHS official's written permission.
(b) A grantee must have the responsible HHS official's written permission before it can use real property, a facility, or a modular unit subject to federal interest for a purpose other than that for which the grantee's application was approved.