40 CFR 53.8 - Designation of reference and equivalent methods.
(a) A candidate method determined by the Administrator to satisfy the applicable requirements of this part shall be designated as a FRM or FEM (as applicable) by and upon publication of a notice of the designation in the Federal Register.
(b) Upon designation, a notice indicating that the method has been designated as a FRM or FEM shall be sent to the applicant.
(c) The Administrator will maintain a current list of methods designated as FRM or FEM in accordance with this part and will send a copy of the list to any person or group upon request. A copy of the list will be available via the Internet and may be available from other sources.