The proposed amendment to Section R309-535-5 updates requirements for chemical storage, fluoride injection, fluoride solution tank venting, and personal protective equipment. It adds new requirements for secondary containment of fluoride solutions, housing for fluoridation facilities (heating, lighting, and ventilation), and acid spill neutralization. The proposed amendment is organized differently than the current rule and includes a General Requirements section that applies to all fluoridation facilities and three additional requirements sections each of which applies to a specific type of fluoridation: fluorosilicic acid, fluoride saturators, and fluoride dry feed.