South Dakota Laws > Title 32 > Chapter 3 > § 32-3-53.4 South Dakota Codified Laws 32-3-53.4. Trailer defined Current as of: 2023 | Check for updates | Other versions For the purposes of §§ 32-3-53 and 32-3-53.2, a trailer is any trailer as defined in § 32-3-1 which has an actual weight of three thousand pounds or greater. Source: SL 1985, ch 239, § 8; SL 2011, ch 138, § 1. Previous sectionNext section Chapter 3 Contents