City inspectors will comb Warren neighborhoods beginning this week to make sure residents and businesses are complying with municipal ordinances.
Property maintenance and building division workers are going street-by-street and house-to-house to weed out blight violations.
Citations can be issued for accumulations of waste and debris, improper storage of metals, wood and car parts, illegal signs and sheds, evidence of rodents, vacant structures, and houses and garages in disrepair.
More than 100,000 commercial buildings and homes have been inspected in Warren over the past five years. More than 30,000 warning notices have been issued.
Mayor Jim Fouts says only 350 court violations with fines up to $1,000 have been issued.
City police, public works, sanitation and communications workers also are involved in Operation: Clean Sweep. The program runs to October.