8 C.F.R. § 1003.66

All providers with a pending application or currently on the List must notify the Director in writing within ten business days if:

(a) The provider's contact information has changed;

(b) Any specific limitations in providing pro bono legal services under § 1003.63(b)(4), (c)(2), or (d)(2) have changed; or

(c) The provider is no longer eligible under § 1003.62.