Oklahoma Time for Completion of Record (OTC) is a method of calculating time deadlines and completion dates for government and legal record keeping. OTC is a standard for calculating the amount of time necessary for government and legal entities to complete records and process requests. There are two types of OTC: regular and expedited. Regular OTC calculations are based on the number of working days in a given period of time, while expedited OTC calculations are based on the number of calendar days in the same period of time. OTC is used to ensure prompt and accurate response times for the completion of government and legal records. OTC is a widely accepted standard for calculating deadlines and completion dates for processing records.