Governments sometimes take measures designed to afford legal protection of access to abortion. Such legislation often seeks to guard facilities which provide induced abortion against obstruction, vandalism, picketing, and other actions, or to protect patients and employees of such facilities from threats and harassment (see sidewalk interference).
 
Another form such legislation sometimes takes is in the creation of a perimeter around a facility, known variously as a "buffer zone", "bubble zone", or "access zone". This area is intended to limit how close to these facilities demonstration by those who oppose abortion can approach. Protests and other displays are restricted to a certain distance from the building, which varies depending upon the law, or are prohibited altogether. Similar zones have also been created to protect the homes of abortion providers and clinic staff.

Bubble zone laws are divided into "fixed" and "floating" categories. Fixed bubble zone laws apply to the static area around the facility itself, and floating laws to objects in transit, such as people or cars.

Laws in Australia