Set the container on private property, like your driveway, a yard, or a fenced job site, and Laredo generally won't ask for a permit. Things change once any part of it sits on a city street, sidewalk, or alley.
For those placements the city controls use of its right-of-way through Building Development Services at 1413 Houston St., open weekdays 8 a.m. to 5 p.m. You can reach the office at 956-794-1625. If the placement actually closes a street or a lane, that's a separate temporary street closure request, handled by the city's real estate staff under its own procedure.
There's a second rule here that matters more than the permit. Laredo requires the companies that collect commercial waste in the city to hold a franchise with the City of Laredo, and the Solid Waste Services department keeps a published list of which companies have one. That rule is about who hauls the container, not about you, but it does shape how a job gets scheduled here.
Before you book, ask your account manager to confirm how the city's franchise rule and the right-of-way rules apply to your address and your placement. They'll get the answer from the city rather than leaving you to guess.
Before you book, confirm with the city that a container can be placed for your job at your address. Rules differ from city to city and they change. Your Prime Dumpster account manager will help you check, and will tell you plainly what your options are here.