Maryland is at this point - "law requires that any company or firm that provides mold remediation services on residential property in Maryland to obtain a license to provide mold remediation services. In addition the law requires that each employee who provides mold remediation services must be certified by an accreditation body as a microbial remediation technician or supervisor, whichever is applicable. This license is to be issued by the Maryland Home Improvement Commission (MHIC), an agency within the Department of Labor, Licensing and Regulation (DLLR). The license to provide mold remediation services is different from the MHIC license for a contractor, subcontractor, or salesperson. This law was scheduled to take effect on June 1, 2010. However, due to budget constraints, the DLLR has postponed the implementation of the Maryland Mold Remediation Services Act until July 1, 2013. " So who knows.