(e), or (f)(1)–(3) and (f)(4)(B)–(F). If the agency receives significant adverse comment within 60 days after publication of the rule, it shall treat the notice of the rule as a notice of proposed rule making and complete rule making in compliance with subsections (d) and (f). (h) Additional requirements for hearings When a hearing is required under subsection (e) or is otherwise required by statute or at the agency’s discretion before adoption of a rule, the agency shall comply with the requirements of sections 556 and 557 in addition to the requirements of subsection (f) in adopting the rule and in providing notice of the rule’s adoption. (i) Date of publication of rule The required publication or service of a substantive final or interim rule shall be made not less than 30 days before the effective date of the rule, except— (1) a substantive rule which grants or recognizes an exemption or relieves a restriction