When issuing a permit, public agencies are required to electronically notify the Department of Public Safety of the permit's issuance. 520 CMR 14.03 (2) (c). The Notice of Issuance of Permit for the Excavation of Trenches pdf format of form_trench_notice_ins_permit_excavation_public_ag (531kb) form may be completed electronically. Once you have completed the form, click "submit" to send it to the Department of Public Safety.