Section 58.01.01.301 - REQUIREMENT TO OBTAIN TIER I OPERATING PERMIT01.Prohibition. No owner or operator may operate any Tier I source without an effective Tier I operating permit.02.Exceptions. No Tier I operating permit is required if the owner or operator is in compliance with Sections 311 through 315 and the Department has not taken final action on the application.Idaho Admin. Code r. 58.01.01.301