Exception: Alterations complying with laws in existence at the time the building or affected portion of the building was built shall be considered in compliance with the provisions of this code unless the building has sustained substantial structural damage as defined in Section 506.2, or the building is undergoing more than a limited structural alteration as defined in Section 807.5.3. New structural members added as part of the repair or alteration shall comply with the Building Code of New York State. Repairs and alterations of existing buildings in flood hazard areas shall comply with Sections 501.4 and 601.3 respectively.
Nothing in this section 102.2 shall be construed (1) as affecting the authority of the State Labor Department to enforce a safety or health standard issued under provisions of sections 27 and 27-a of the Labor Law; (2) to relieve a person from complying with a stricter standard issued pursuant to the Occupational Safety and Health Act of 1970, as amended; (3) as superseding, limiting, impairing or otherwise affecting any provision in Parts 1219 to 1228 of Title 19 of the New York Codes, Rules and Regulations, as now in effect and as hereafter amended from time to time.
Appendix A – Guidelines for the Seismic Retrofit of Existing Buildings
Resource A – Guidelines on Fire Ratings of Archaic Materials and Assemblies