There is a new law in the United States about health insurance. Under this law, many people who are in the United States legally (including some H-2A workers) will be required to buy health insurance.
Health insurance is a very good thing. The purpose of the new law is to help people get insurance at a price they can afford.
However, if you are a person who is required to buy health insurance, but you fail to do so, you may have to pay a penalty to the government. The penalty will be collected when you file your tax return.
The rules about what kind of insurance you can get and who is required to buy insurance are very complicated. For more information, you can call this number: 1-800-318-2596 for the U.S. Health Insurance Marketplace hotline.
If you are an H2A worker, you can find more information at H-2A: Health Care.