In this chapter, the following terms have the meanings indicated. Terms Defined. “Established locality” means the nearest locality in Maryland which most closely approximates the site of the public work in terms of population, degree of industrialization, and skill of the work force. “Overtime” means: Work performed in excess of 10 hours per calendar day, or work performed on Sundays and legal holidays, including but not limited to: New Year's Day, January 1; Memorial Day, as observed by either the State or the federal government; Independence Day, July 4th; Labor Day, first Monday in September; Thanksgiving Day, fourth Thursday in November; and Christmas Day, December 25th. Payment of overtime to employees for other legal holidays is not prohibited, whether or not the employees are covered by collective bargaining agreements. “Stop work order” means an order issued by the Commissioner to a contractor or subcontractor that requires the contractor or the subcontractor to stop that contractor’s or that subcontractor’s work at the location identified in the order. “Weighted average rate” for a classification means the rate obtained by adding together the hourly rate paid to each worker in a classification and dividing the total by the number of workers in the classification.