Investigates and enforces in more than one functional area of the City of Dallas: city codes, construction, drainage, environmental, housing, industrial waste, park construction, plumbing, roofing, street & sewer, transportation regulation, and water/wastewater construction. Applicants with a Code Enforcement Officer certification, issued by a state other than Texas, must obtain the certification from the Texas Department Licensing and Regulation (TDLR) within the probationary period (6-months).