CFR / 
Title 33
 / 
Part 117
 / 
Sec. 117.429 Boeuf Bayou.
The draw of the S307 bridge, mile 1.3 at Kraemer, shall open on signal; except that, from 9 p.m. to 5 a.m., the draw shall open on signal if at least 12 hours notice is given.