A council is giving extra leave to staff members who have premature babies needing hospital treatment.
Employees at Waltham Forest Council are entitled to an extra week of leave for every week their premature baby spends in hospital before their due date.
Campaigners hope the scheme will put pressure on ministers to change maternity and paternity leave laws.
The government said the UK's maternity leave system was already one of the "most generous in the world".
The council believes it is the first employer in the UK to introduce such a policy.
When babies are born prematurely, parental leave starts the day after the birth.