Becoming a Local 491 member is easy and starts with an apprenticeship. New apprenticeship cohorts are selected each month. Start by completing this application form, and a representative from our state-of-the-art training facility in Upper Marlboro, Maryland, will be in touch with next steps. All applicants will need to pass an in-person math test at the training facility and participate in an employment interview and a drug screening. Click here to see a sample math test.