It just means that there's an initial probationary period where the employment is at-will, and beyond that point the employer must have a reasonable cause to te

It just means that there's an initial probationary period where the employment is at-will, and beyond that point the employer must have a reasonable cause to terminate the employee. I'm not at all familiar with Montana labor laws in practice, but I find it very difficult to believe that it makes much of a difference.