In general Any Federal official described in section 815(a) who obtains information that is relevant to the enforcement of this subtitle, including information pertaining to any investigation, shall furnish such information to each appropriate department, agency, or office with enforcement responsibilities under this section to the extent consistent with the protection of intelligence, counterintelligence, and law enforcement sources, methods, and activities. (B) Exceptions The provisions of this paragraph shall not apply to information subject to the restrictions set forth in section 9 of title 13, United States Code, and return information, as defined in subsection (b) of section 6103 of the Internal Revenue Code of 1986 ( 26 U.S.C. 6103(b) ), may be disclosed only as authorized by that section. (C) Exchange of information The President shall ensure that the heads of departments, agencies, and offices with enforcement authorities under this subtitle, consistent with protection of law enforcement and its sources and methods— (i) exchange any licensing and enforcement information with one another that is necessary to facilitate enforcement efforts under this section