Follow-up notification requirements for release occurring in transportation

Must a notifier submit a follow-up emergency notice after the initial 911 report?

Notification of a release during transportation or storage incident to transportation, including the requirement to submit a written follow-up notice, is satisfied by dialing 911 and providing the release information as described in 40 CFR §355.42 to the operator.  In the absence of a 911 number, the notifier may call the local operator to satisfy the emergency release notification requirements (section 304(b)(1)).