CFR > Title 24 - Housing and Urban Development > SUBTITLE B—Regulations Relating to Housing and Urban Development > CHAPTER XX—OFFICE OF ASSISTANT SECRETARY FOR HOUSING—FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (parts 3280 to 3800) > PART 3285—MODEL MANUFACTURED HOME INSTALLATION STANDARDS > SUBPART G—Ductwork and Plumbing and Fuel Supply Systems (§3285.601 to §3285.606)