Okla. Admin. Code § 165:25-1-41
PSTD requires owners or operators of underground storage tank systems to provide information it deems necessary for the protection of human health, safety, property and the environment. Use of the designated PSTD online format is required for reporting, scheduling, tank registration, change in ownership, release detection, testing, temporary change in service, permanent closure, or return to service. Owners and operators must notify PSTD within thirty (30) days when their mailing address changes or tank status changes. Owners and operators of underground petroleum storage tank systems must notify PSTD at least thirty (30) days prior to switching to regulated substances containing greater than ten percent (10%) ethanol or regulated substances containing greater than twenty percent (20%) biodiesel in the online format established by PSTD. Required release detection forms are available on the Commission website. Failure to notify and/or submit PSTD paperwork in the online format established by PSTD within the timeframe required may result in an enforcement action.
Okla. Admin. Code § 165:25-1-41