DSA (Division of State Architect) Project Inspector/Inspector of Record – TYR has over 16 years of experience providing inspection services for projects requiring DSA certification throughout California. Many of our skilled and professional inspectors have over 30 years of experience and are experts in different types of construction (i.e. Type I, II, III, IV & V) and in diverse construction delivery methods such as: Design-Bid-Build, Design-Build, Multiple Prime Contractors, Prefab Buildings, Lease-Lease Back, and Construction Manager at Risk