So the work comp policy is 2 parts, Med/Idemnity and Employer Liability Limits( i know you know this just breaking down ) . And i think they carbon copied ( if you will ) from USL& H and Jones Act ( same scenario kinda- USL&H for the med/indemnity- Jones act for the "employer liability" part )
So yeah the USL&H covers the "comp" and the Jones act the "e.l. " parts. ( as how i was taught )
And i know here, if you work within 100' of navigable waters ( ton of that with Harvey canal, Intracostal and companies that have shops/warehouses etc along ) you fall under this. Same for bridges- i had a sub doing blasting work on GNO 20 years ago ( to prep for painting ) and had to get the USLH for the job.
IIRC - its "on/near/over" navigable waterways.
Yeah them polo shirted, khaki panted drivers are longshormen according to their WC carrier lolol.