---
kind: "section"
citation: "49 C.F.R. § 193.2067"
title: "49"
number: "193.2067"
heading: "Wind forces."
url: "https://uscodex.org/cfr/49/193.2067"
---

# §193.2067. Wind forces.

- (a) LNG facilities must be designed to withstand without loss of structural or functional integrity:
  - (1) The direct effect of wind forces;
  - (2) The pressure differential between the interior and exterior of a confining, or partially confining, structure; and
  - (3) In the case of impounding systems for LNG storage tanks, impact forces and potential penetrations by wind borne missiles.
- (b) The wind forces at the location of the specific facility must be based on one of the following:
  - (1) For shop fabricated containers of LNG or other hazardous fluids with a capacity of not more than 70,000 gallons, applicable wind load data in ASCE/SEI 7 (incorporated by reference, see [§ 193.2013](/cfr/49/193.2013.md)).
  - (2) **For all other LNG facilities—**
    - (i) An assumed sustained wind velocity of not less than 150 miles per hour, unless the Administrator finds a lower velocity is justified by adequate supportive data; or
    - (ii) The most critical combination of wind velocity and duration, with respect to the effect on the structure, having a probability of exceedance in a 50-year period of 0.5 percent or less, if adequate wind data are available and the probabilistic methodology is reliable.

## Notes

### Amendments

[45 FR 9203, Feb. 11, 1980, as amended by Amdt. 193-1, 45 FR 57419, Aug. 28, 1980; 58 FR 14522, Mar. 18, 1993; Amdt. 193-16, 63 FR 37505, July 13, 1998; Amdt. 193-17, 65 FR 10959, Mar. 1, 2000; Amdt. 193-19, 71 FR 33409, June 9, 2006; Amdt. 193-22, 75 FR 48604, Aug. 11, 2010; Amdt. 193-25, 80 FR 183, Jan. 5, 2015]

### Authority

Authority: 49 U.S.C. 5103, 60102, 60103, 60104, 60108, 60109, 60110, 60113, 60118; and 49 CFR 1.53.

### Source

Source: 45 FR 9203, Feb. 11, 1980, unless otherwise noted.

### Amendments

[45 FR 9203, Feb. 11, 1980, as amended by Amdt. 193-1, 45 FR 57419, Aug. 28, 1980; 58 FR 14522, Mar. 18, 1993; Amdt. 193-16, 63 FR 37505, July 13, 1998; Amdt. 193-17, 65 FR 10959, Mar. 1, 2000; Amdt. 193-19, 71 FR 33409, June 9, 2006; Amdt. 193-22, 75 FR 48604, Aug. 11, 2010; Amdt. 193-25, 80 FR 183, Jan. 5, 2015]