No they do not. Not when they are on the road.
OSHA regulations and laws do not apply to CMV drivers, while they are on the road. The FMCSA, which falls under the DOT, has full authority over CMV drivers and makes the laws and regulations, including safety, covering them. OSHA has no authority over CMV drivers on the road and therefor cannot enforce a law about providing drinking water when the CMV is on a public road.
They can when it is at a building loading or unloading. The driver can get the same water that the building employees get. UPS legally does not have to supply water to most package or feeder drivers while they are on the road.
However, bring your own cooler and fill it free of charge with UPS's water at the building before you leave and bring it with you. Or bring it from home. Just make sure you have plenty of water.
OSHA can enforce record keeping, for accidents and injuries for CMV drivers, but that is about it.
Standards
Trucking industry is addressed in specific OSHA standards for recordkeeping and general industry. This section highlights OSHA standards and documents related to the trucking industry.
OSHA is preempted by Section 4(b)1 of the OSH Act from enforcing its regulations if a working condition is regulated by another Federal agency.
For example:
- While traveling on public highways, the Department of Transportation (DOT) has jurisdiction. However, while loading and unloading trucks, OSHA regulations govern the safety and health of the workers and the responsibilities of employers to ensure their safety at the warehouse, at the dock, at the rig, at the construction site, at the airport terminal and in all places truckers go to deliver and pick up loads.
www.osha.gov