1. Short title This Act may be cited as the Family Medical Leave Modernization Act . 2. Eligible employee Section 101(2)(B)(ii) of the Family and Medical Leave Act of 1993 ( 29 U.S.C. 2611(2)(B)(ii) ) is amended by striking less than 50 each place it appears and inserting fewer than 15 . 3. Leave to care for a domestic partner, parent-in-law, adult child, sibling, grandparent, grandchild, aunt, uncle, or other individual related by blood or affinity (a) Definitions (1) Inclusion of grandparents, grandchildren, parents-in-law, siblings, and domestic partners Section 101 of such Act is further amended by adding at the end the following: (20) Domestic partner The term domestic partner means— (A) the person recognized as the domestic partner of the employee under any domestic partner registry or civil union laws of the State or political subdivision of a State