New York Codes, Rules and Regulations
Title 12 - DEPARTMENT OF LABOR
Chapter I - Industrial Board Of Appeals
Subchapter A - The Industrial Code
Part 12 - Control Of Air Contaminants
Subpart 12-2 - Specific Operations And Specific Control Requirements
Section 12-2.6 - Abrasive blasting operations

(a) General. Abrasive blasting operations creating dangerous air contaminants shall be enclosed as completely as practicable and shall be provided with local exhaust systems to remove the air contaminants.

Exception:Outdoor abrasive cleaning operations where the operator is furnished with and wears an approved air line respirator.

(b) Operation. Approved air respiratory protective equipment of the supplied air type shall be used by persons employed in abrasive blasting rooms or tunnels.

(c) Air supply. Air furnished to air line respiratory equipment shall be clean.