請問大家， 這個離婚文件是必須的嗎？

正在跟老公辦理離婚手續，在紐約州遞的材料。現正在等待中。今天收到一封信， 是
Addendum where stipulation does not contain language: Addendum to stipulation of settlement DRL 177,
I, fully understand that upon the entrance of this divorce agreement, I may no longer be allowed to receive health coverage under my former spouse's health plan,...
This asks for two party's signature.

我不知道這是不是必須的，我的老公自我交上材料就找不到人了，他提過要出國，我不確定能否找到他讓他簽名。這會影響離婚的審批嗎？ 謝謝大家了。