政策法规现行有效美国跨境陆运

§ 393.102 What are the minimum performance criteria for cargo securement devices and systems?

效力	法规类型	发布日期	生效日期	发文机构
现行有效	部门规章	2026-02-19	2026-03-23	Code of Federal Regulations (CFR) - Transportation (Title 49)

发布02-19

生效03-23

摘要总结AI 辅助解读

本法规规定了美国商业机动车货物固定装置及系统的最低性能标准。核心要求包括：固定组件（如链条、绑带等）在特定加速度条件下，其受力不得超过制造商规定的断裂强度和工作载荷极限(WLL)。具体而言，前向减速需承受0.8g力而不超过断裂强度，0.435g力而不超过WLL；侧向加速度分别为0.5g和0.25g。此外，对于未完全封闭在车辆结构内的货物，固定系统需提供至少相当于货物重量20%的下压力以防止垂直移动。合规方式还包括 immobilization（固定不动）或符合§§ 393.104-393.136的具体规定。

(a) Performance criteria —(1) Breaking strength. Tiedown assemblies (including chains, wire rope, steel strapping, synthetic webbing, and cordage) and other attachment or fastening devices used to secure articles of cargo to, or in, commercial motor vehicles must be designed, installed, and maintained to ensure that the maximum forces acting on the devices or systems do not exceed the manufacturer's breaking strength rating under the following conditions, applied separately:
(i) 0.8 g deceleration in the forward direction;

- (ii) 0.5 g acceleration in the rearward direction; and

- (iii) 0.5 g acceleration in a lateral direction.

- (2) Working Load limit. Tiedown assemblies (including chains, wire rope, steel strapping, synthetic webbing, and cordage) and other attachment or fastening devices used to secure articles of cargo to, or in, commercial motor vehicles must be designed, installed, and maintained to ensure that the forces acting on the devices or systems do not exceed the working load limit for the devices under the following conditions, applied separately:

(i) 0.435 g deceleration in the forward direction;

- (ii) 0.5 g acceleration in the rearward direction; and

- (iii) 0.25 g acceleration in a lateral direction.

(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 § 393.106(b).
(c) Equivalent means of securement. The means of securing articles of cargo are considered to meet the performance requirements of this section if the cargo is:

- (1) Immobilized, such so that it cannot shift or tip to the extent that the vehicle's stability or maneuverability is adversely affected; or

- (2) Transported in a sided vehicle that has walls of adequate strength, such that each article of cargo within the vehicle is in contact with, or sufficiently close to a wall or other articles, so that it cannot shift or tip to the extent that the vehicle's stability or maneuverability is adversely affected; or

- (3) Secured in accordance with the applicable requirements of §§ 393.104 through 393.136.

[71 FR 35832, June 22, 2006, as amended at 78 FR 58484, Sept. 24, 2013]