Section 84.29 - Destruction of regulated substances(a) The following technologies are approved by the Administrator for destruction of all regulated substances except for HFC-23:(2) Gaseous/fume oxidation;(3) Liquid injection incineration;(4) Porous thermal reactor;(6) Rotary kiln incineration;(10) Chemical reaction with hydrogen and carbon dioxide;(11) Gas phase catalytic de-halogenation; and(12) Superheated steam reactor.(b) The following technologies are approved by the Administrator for destruction of HFC-23: (1) Gaseous/fume oxidation;(2) Liquid injection incineration;(4) Rotary kiln incineration;(7) Chemical reaction with hydrogen and carbon dioxide; and(8) Superheated steam reactor. 86 FR 55208 , Oct. 5, 2021