Upper Darby Township requires a sewer lateral inspection at the time of sale as part of the use-and-occupancy (U&O) process. The inspection is valid for 90 days. If the buyer or seller changes during that period, a new inspection is required. To avoid delays in obtaining a certificate, the township recommends completing the sewer lateral inspection as early as possible. Both the standard U&O inspection and the sewer lateral inspection — performed by a certified plumbing technician — must be completed before the township will issue a certificate. Under the Municipal Code and Ordinance Compliance Act, the township must issue either a clear U&O certificate, a temporary certificate of occupancy or a temporary access certificate. However, all required municipal inspections must be completed as part of that process. Due to high demand, Upper Darby’s website suggests submitting applications four weeks prior to settlement.