Revise workers' compensation laws relating to travel and reimbursement

This bill amends Montana's workers' compensation laws to clarify coverage rules for employees traveling for work. It establishes that an employee is covered for injuries sustained while traveling only if the employer provides transportation or reimburses travel costs like gas and lodging, or if the travel is required as part of job duties. The legislation also clarifies that simply receiving reimbursement does not automatically determine coverage status, and it maintains existing restrictions on benefits when alcohol or drug use is the major cause of an accident. Additionally, the bill preserves protections for employees using marijuana for qualifying medical conditions, ensuring they are not denied benefits solely due to such use.