R.I. Gen. Laws § 23-23.6-5: Certificate of acceptable air quality required.

(a) No person shall own or operate an ice arena in which a resurfacing machine is used without a certificate of acceptable air quality issued by the director. The certificate must be displayed in a conspicuous place in the ice arena.

(b) For cause, and for violation of the provisions of this chapter, or regulations promulgated pursuant to the authority conferred by this chapter, the director may suspend, modify, or revoke a certificate of acceptable air quality.