There is a new parental policy within the Federal Government. It is an amendment of FMLA and it pays 12 weeks of leave for the parent of a new biological or an adopted child or foster care. This does not include vacation or sick time. It is inclusive of the mother or the father. The new policy started on October 1, 2020 and has some key features for an employee to be eligible.
It is called FEPLA. The Federal Employee Paid Leave Act.
https://www.commerce.gov/hr/paid-parental-leave-federal-employees