To verify your membership status please contact your local home builders association or call NAHB toll-free at 800-368-5242, ext. 0. To become a member of NAHB, you must join the local home builders association (HBA) serving your area. When you join your local association, you automatically become a member of all three levels of the NAHB federation: local, state (where state associations exist), and national. To find the home builders association nearest you, use our online locator or call NAHB toll-free at 800-368-5242, ext. 0. Learn more about the benefits of NAHB's membership or contact 800-368-5242, ext. 8440.