General rule. Petitions to modify, amend, or revoke land-use-exemption permits shall be decided in accordance with the Board's normal standard of review for petitions to reopen administratively final Board actions at 49 CFR 1115.4. The petition must demonstrate material error, new evidence, or substantially changed circumstances that warrant the requested action, and is subject to these additional conditions:

(a) An entity that petitions for a modification or amendment requesting an expansion of federal preemption or the facility's operations or physical size is subject to the notice and application requirements in this subpart C. The language of the notifications shall be modified to note that the petition is for a modification or amendment.

(b) The Board will approve or deny petitions to modify, amend, or revoke a land-use-exemption permit within 90 days after the full record for the petition is developed.