29 C.F.R. § 2570.36

The Department's prohibited transaction exemption program is administered by the Employee Benefits Security Administration (EBSA). Any exemption application governed by these procedures may be mailed via first-class mail to: Employee Benefits Security Administration, Office of Exemption Determinations, U.S. Department of Labor, Room N-5700, 200 Constitution Avenue NW., Washington, DC 20210. Alternatively, applications may be emailed to the Department at e-OED@dol.gov or transmitted via facsimile at (202) 219-0204. Notwithstanding the foregoing methods of transmission, applicants are also required to submit one paper copy of the exemption application for the Department's file.