Snow removal laws in Massachusetts

[Loic Assobmo]

What are the laws regarding snow removal in Massachusetts- specifically chicopee. I always shovel the front side walk and stairs to create a way of entering and exiting. I also have a driveway and parking lot which I only shovel if there is a storm. Is there a specific height of snow that we are mandated to remove? Are there rules about having to shovel the drive way and parking lot for the tenants. I made no mention in my current leases.