43 CFR § 3835.20
Transferring, selling, inheriting, or otherwise conveying mining claims or sites already subject to a waiver
June 11, 2020
(a) If you purchase, inherit, or otherwise obtain mining claims or sites that are subject to a waiver, you must also qualify for the waiver in order for BLM to continue to apply the waiver to the mining claims you have received in the transfer; or
(b) If you purchase, inherit, or otherwise obtain mining claims or sites that are subject to a waiver and you do not qualify for the waiver, you must pay the annual maintenance fee by the September 1 following the date the transfer became effective under state law.