South Carolina Code of Regulations
Chapter 38 - DEPARTMENT OF PUBLIC SAFETY
Article 5 - STATE TRANSPORT POLICE REGULATIONS
Subarticle 1 - UNMANUFACTURED FOREST PRODUCTS TRUCKING REGULATIONS
Part 38-393 - PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION
Subpart I - PROTECTION AGAINST SHIFTING OR FALLING CARGO
Section 38-393.102 - What are the minimum performance criteria for cargo securement devices and systems?

(a) Performance criteria. Cargo securement devices and systems must be capable of withstanding the following three forces, applied separately:

(b) Performance criteria for devices to prevent vertical movement of loads that are not contained within the structure of the vehicle. Securement systems must provide a downward force equivalent to at least 20 percent of the weight of the article of cargo if the article is not fully contained within the structure of the vehicle. If the article is fully contained within the structure of the vehicle, it may be secured in accordance with Regulation 38-393.106(b).

(c) Prohibition on exceeding working load limits. Cargo securement devices and systems must be designed, installed, and maintained to ensure that the maximum forces acting on the devices or systems do not exceed the working load limit for the devices under the conditions listed in paragraphs (a) and (b).

(d) Equivalent means of securement. Cargo that is immobilized, or secured in accordance with the applicable requirements of Regulations 38-393.104 through 38-393.136, is considered as meeting the performance criteria of 38-393.