Section 460.4 - Energy conservation standards(a)General. A manufactured home must comply with the energy conservation standards specified for the applicable tier as presented in paragraphs (b) and (c) of this section.(b)Tier 1. A single-section manufactured home (i.e., a Tier 1 manufactured home) must comply with all applicable requirements in subparts B and C of this part.(c)Tier 2. A multi-section manufactured home (i.e., a Tier 2 manufactured home) must comply with all applicable requirements in subparts B and C of this part.