Section 642-1-5 - ENFORCEMENT OF MUBEC1. Pursuant to 25 M.R.S. §2373, in municipalities with a population over 4,000, enforcement of the provisions of the MUBEC shall be the responsibility of the municipality and shall be accomplished by one or more of the following means the decision of which provision is used is solely the decision of the municipality. A. Building officials. Inspections performed by building officials certified pursuant to 30-A M.R.S. §4451.B. Inspections by virtue of inter-local agreements. Inspections performed by virtue of inter-local agreements with other municipalities, that share the use of building officials, certified in building standards pursuant to 30-A M.R.S. §4451.C. Contractual agreements. Inspections performed by virtue of contractual agreements with one or more municipalities, or county or regional authorities, that share the use of building officials certified in building standards pursuant to 10 M.R.S. §9723.D. Third party inspection by report. Inspections performed and verified by reports from a TPI, certified pursuant to 10 M.R.S. §9723.E. If the municipality does not elect one or more of the four-options listed above, then the applicant shall elect to have an inspection performed by a TPI at their own cost.