1. Treatment or disposal of regulated medical waste shall be by one of the following methods:

a. By incineration in a regulated medical waste incineration facility approved and under permit pursuant to article nineteen of this chapter which provides complete combustion of the waste to carbonized or mineralized ash. Regulated medical waste so combusted shall be disposable as nonhazardous waste provided it is not an otherwise hazardous waste as defined in the regulations promulgated under section 27-0903 of this article.

b. By discharge to sewerage system if the waste is liquid or semi-liquid except as specifically prohibited by the commissioner or the commissioner of health.

c. By decontamination by autoclaving, or by other technique approved by the department of health. Regulated medical waste so treated shall be disposed of as solid waste provided it is not otherwise a hazardous waste as defined in section 27-0903 of this article or the regulations promulgated thereunder, and is accompanied by a certificate, in a form prescribed by the commissioner of health which evidences such treatment.

d. By other method approved in writing by the commissioner of health.

2. Regulated medical wastes shall not be disposed of by burial at a landfill disposal facility, unless treated in accordance with subdivision one of this section. All sharps must be rendered unrecognizable prior to disposal.