This is the fourth edition of the CSA Z240 MH Series of Standards, Manufactured homes.Z240.0.1-16 - General requirements for manufactured homes: This Standard specifies general requirements for manufactured homes, including technical requirements, and requirements on quality control, markings, and provision of printed instructions. Z240.2.1-16 - Technical requirements for manufactured homes: This Standard specifies the minimum requirements for materials, products, equipment, and practice needed to ensure that manufactured homes will provide adequate a) structural strength and rigidity, including resistance to vibration and deflection; b) protection against corrosion, decay, insects, and other similar destructive forces; c) protection against the hazards of fire; d) safety in use; e) resistance to unwanted entry; f) indoor conditions; g) sanitation; and h) thermal, HVAC and plumbing system performance to avoid excessive energy use. Z240.4.1-16 - Installation requirements for oil- and gas- fired appliances in manufactured homes: This Standard applies to the factory installation of oil- and gas-fired appliances, equipment, components, accessories, piping and tubing in manufactured homes, and specially designed or modified units. Note: Specially designed or modified units include industrial or commercial trailers.