641—70.7 (135) Firms. All firms that perform or offer to perform lead-based paint activities after September 15, 2000, must be certified by the department. Firms shall employ only appropriately certified employees to conduct lead-based paint activities, and the firm and its employees shall follow the work practice standards in 641—70.6(135) for conducting lead-based paint activities.
	 70.7(1) A firm wishing to be certified shall apply on forms supplied by the department. The firm must submit:
	  a.   	 A completed application form.
	  b.   	 Documentation that the firm will employ only appropriately certified lead professionals to perform lead-based paint activities. In addition, the firm must document that the agency and its employees or contractors will follow the work practice standards in 641—70.6(135) for conducting lead-based paint activities.
	  c.   	 The certified firm must maintain all records required by 641—70.6(135), with the exception of elevated blood lead (EBL) inspection reports, for three years. Certified firms that are also certified as elevated blood lead (EBL) inspection agencies must maintain elevated blood lead (EBL) inspection reports for at least 10 years.
	 70.7(2) Reserved.