(4) Exterior paint containing dangerous levels of lead shall be contained or abated pursuant to regulations issued by the director, after consultation with the department of environmental protection specifying acceptable methods and prescribing encapsulation, shrouding or other containment methods; provided, however, that the director may ban sandblasting of exterior paint where he determines that children under six years of age are at risk of exposure to dangerous levels of lead. The use of potassium or sodium hydroxide in removing exterior lead-based paint shall be prohibited. Such regulations shall recommend appropriate methods of containment or abatement for properties listed on the state register of historic places. Local boards of health or code enforcement agencies shall enforce compliance with this regulation.
(5) Paint chips, dust and other debris created by the containment or abatement of interior or exterior paint shall be cleaned up by the person performing the containment or abatement in conformance with regulations promulgated by the director.
Upon the determination of a licensed inspector that the premises fully comply with the requirements of this subsection, said inspector shall issue a letter of full compliance for said premises. The director shall prepare one or more standard formats for letters of full compliance which may be revised from time to time as appropriate. All licensed inspectors shall use such standardized formats in issuing letters of full compliance.