Tubal sterilization is a very serious decision and prior to going under the knife you should do ample research and talk to your doctor to make the most informed decision possible. As far as whether or not you need your husband or partner's consent to have tubal sterilization, the short answer is no. Tubal sterilization from the law's perspective is an individual decision and does not require consent unless a woman is underage and then consent would be requested most likely from the parent, not from the husband or partner.
Tubal sterilization is considered to be the most effective and most permanent form of birth control. There are two methods of tubal sterilization. The first is called a tubal ligation or more commonly it is referred to as having the "tubes tied." This procedure involves a woman's fallopian tubes being blocked preventing eggs from moving from the ovary to the uterus. Some evidence supports that tubal ligation can be reversed, however it is not 100% guaranteed. The second method of tubal sterilization is female castration, which involves removing a woman's ovaries. This method is not reversible.
While by law tubal sterilization is an individual decision, if you are in a relationship it is best to talk with your husband or partner before making the decision. It is a decision that is likely to be permanent and should not be used as a form of birth control unless you are certain you do not want to have any children. Modern medicine has developed several forms of contraception that are over 99% effective when used properly and do not have long lasting effects. If you and your husband or partner would like to have children in the future, consider another method of birth control that is not likely to have permanent effects.
When making the decision to tell or not tell your husband or partner about your decision consider that your choices are likely to surface down the line and could cause problems in your relationship. Your husband or partner is likely to feel they have been lied to and it could create trust issues. Also, consider that you may have a change of heart. Tubal sterilization should be considered a permanent procedure. Do not do anything you could regret down the line.
If you feel strongly about having tubal sterilization and your husband or partner does not agree, you should discuss all of the pros and cons and explain why you feel it is the best decision for you. Your husband or partner may still disagree, but you should let them know that it is your personal decision. They will have all the facts and then they can make their own decisions accordingly. Ultimately, if you feel that tubal sterilization is the route you would like to take, do so with a clear conscience.