50 C.F.R. § 18.129
Information collection requirements
OMB has approved the collection of information contained in this subpart and assigned OMB control number 1018-0070. We may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number. Direct comments regarding the burden estimate or any other aspect of this requirement to the Information Collection Clearance Officer, U.S. Fish and Wildlife Service, at the address listed in 50 CFR part 2.1.