Oregon Contractor (NASCLA) In Oregon, anyone who works for compensation in any construction activity involving improvements to real property is required to be licensed.. The NASCLA exam is used for the General Building classification in OR. With the General Building classification a contractor can perform or subcontract all crafts on a residential structure. On a commercial or industrial project they cannot perform electrical; plumbing; heating, ventilating and cooling; piping; or general engineering but can sub-contract these crafts to properly licensed contractors.
The NASCLA exam is accepted in NC, SC, GA, AL, TN, MS, LA, AR, NV, WV, UT, VA, OR and the U.S. Virgin Islands. All contractors must take a business law exam also.