Abigail R. Hall Blanco writesSan Francisco has become the first city to mandate full pay for parents who take leave on the birth or adoption of a child.

According to the legislation, lost pay is the primary reason workers fail to take advantage of existing California law that enables them to receive 55 percent of their wages (and up to 70 percent beginning in 2018) while on leave to care for a new child or ill family member.

The San Francisco legislation, which Mayor Ed Lee has not yet signed into law, seeks to remedy this by requiring companies with 20 or more employees to make up the difference between what employees receive through a special state fund and their full pay.