Prevailing wages must be paid to all workers employed on a public works project when the public works project is over $1,000. If an awarding body elects to initiate and enforce a labor compliance program, that has been approved by the Director of the Department of Industrial Relations, for every public works project under the authority of the awarding body, prevailing wages are not required to be paid for any public works project of $25,000 or less when the project is for construction work, or for any public works project of $15,000 or less when the project is for alteration, demolition, repair, or maintenance work.