A main facility and each residence shall have on-site only those poisonous, toxic, or flammable substances that are required to maintain the main facility or residence.
All poisonous, toxic, or flammable substances shall be stored in accordance with the manufacturer's instructions.
All toxic or poisonous substances shall be labeled as to the contents and antidote.
D.C. Mun. Regs. tit. 29, r. 29-6336