Before publication of notice of proposed rulemaking with respect to any standard or regulation to which this section applies, the Administrator shall prepare an economic impact assessment respecting such standard or regulation. Such assessment shall be included in the docket required under section
7607
(d)(2) of this title and shall be available to the public as provided in section
7607
(d)(4) of this title. Notice of proposed rulemaking shall include notice of such availability together with an explanation of the extent and manner in which the Administrator has considered the analysis contained in such economic impact assessment in proposing the action. The Administrator shall also provide such an explanation in his notice of promulgation of any regulation or standard referred to in subsection (a) of this section. Each such explanation shall be part of the statements of basis and purpose required under sections
7607
(d)(3) and
7607
(d)(6) of this title.