51.3—When will the Director approve a publication?
(a)
The Director will approve the incorporation by reference of a publication when the following requirements are met:
(4)
The Director has received a written request from the agency to approve the incorporation by reference of the publication.
(b)
The Director will notify the agency of the approval or disapproval of an incorporation by reference within 20 working days after the agency has met all the requirements for requesting approvals (See § 51.5 ).