If Ive already submitted my Top-Screen for a release-toxic or release-flammable COI and it is stored underground, do I have to resubmit with the new questions regarding underground storage?
If you have already completed and submitted a Top Screen for your facility, you are not required to submit a new Top Screen at this time simply because the COI is stored underground. However, if you do have a release-flammable or release-toxic COI stored underground, you may choose to submit a new Top Screen which will provide the CFATS program with some additional useful information. If you choose to submit a new Top Screen, you may do so by following the steps described in FAQ # 1406. (Please note that covered, high-risk, facilities are required to submit revised Top Screens periodically, and after material modifications to the operations or site, in accordance with 6 CFR ยง 27.210(b) and (d).