State law requires a Foreign Corporation to file a certificate of registration as an organization with the Secretary of State within 10 days. Learn the Department of Revenue's (DOR's) registration requirements when working as an outofstate contractor or subcontractor in Massachusetts.One essential form for overseas contractors is Form W-8BEN. Discover essential steps for safely paying international contractors. Our guide simplifies compliance, currency, payment methods, contracts, and more. Get your Massachusetts construction licenses. Harbor Compliance assists with initial and renewal registrations in every state. Learn how to get a general contractor license in Massachusetts (MA), as well as the insurance requirements to help protect your small business. Massachusetts contractor licensing has several rules and requirements to remember make sure you have the info you need to be in business. We are the collective voice of the heavy construction industry – your partner in providing a world class transportation infrastructure for Massachusetts.