42 CFR §137.256

1. (a)Subject to the steps in § 137.257, the Secretary may reassume a program, service, function, or activity (or portion thereof) and associated funding if the Secretary makes a specific finding relative to that PSFA of :
   1. (1)Imminent endangerment of the public health caused by an act or omission of the Self-Governance Tribe, and the imminent endangerment arises out of a failure to carry out the compact or funding agreement; or
   2. (2)Gross mismanagement with respect to funds transferred to the Self-Governance Tribe by a compact or funding agreement, as determined by the Secretary, in consultation with the Inspector General, as appropriate.
2. (b)Immediate reassumption may occur under additional requirements set forth in § 137.261.