Picketing is legal as long as it does not limit or deny access of employees, customers, visitors, vehicles, deliveries, etc., to the business and any of its components. Blocking anyone or any vehicle from entering or leaving the business property, physically or by threatening behavior, is illegal.

What are the rules of picketing?

Picketing is confined to public areas surrounding the employer's premises, at the deSignated picketing areas. As a general rule, there should be no picketing on private property or in the streets. The picket sign should never go near a gate reserved for other contractors.

Can the picketers block the entrance and exit of company premises?

A picket simply means to march to and from the employer's premises, usually accompanied by the display of placards and other signs making known the facts involved in a labor dispute. ... Protected picketing does not extend to blocking ingress to and egress from the company premises.