|(a) Each operator of an underground pipeline shall report to the Commission all damage to its pipelines caused by an excavator. Within 10 days of the damage incident or of the operator's actual knowledge of the damage incident, an operator shall submit the information to the Commission through TDRF, which may be accessed at http://www.rrc.state.tx.us/formpr/index.html using its assigned operator identification code. (b) Each excavator that damages an underground pipeline shall notify the operator of the damage through the notification center immediately but not later than two hours following the damage incident. The excavator shall also submit report of the damage incident to the Commission using TDRF, which may be accessed at http://www.rrc.state.tx.us/formpr/index.html and the excavator sign-in, within 10 days of the incident. (c) Each excavator that makes an additional call to the notification center pursuant to §18.4(e) of this title, relating to Excavator Obligation to Avoid Damage to Underground Pipelines, because the excavator did not receive a positive response, shall report that fact to the Commission through TDRF. An excavator shall also report an operator's failure to provide a positive response to a second call to the Commission through TDRF. (d) An emergency response official, a member of the general public, or another person aware of damage to an underground pipeline is encouraged to submit an incident form using TDRF, which can be accessed at http://www.rrc.state.tx.us/formpr/index.html. Entries can be made through the general public or emergency response official sign-in.