What shall one do after receiving a green card? ---------- Here is what I am aware of. Actions to take ASAP: - Replace/update your SSN card. This can be done at your local social security center. See https://www.ssa.gov/ - If employed: ask the employer to update the I-9 - If you have some accounts at banks, insurance, mortgage: inform them about your residency status, as in some places you may be eligible for lower rate after getting the green card. - If you are a male between ages 18 and 25 (inclusive, i.e. who have reached their 18th birthday and who have not passed their 26th birthday): register with the Selective Service (U.S. Armed Forces) Things to do until you get US citizenship: - Fill an form AR-11 (Alien's Change of Address Card: https://www.uscis.gov/ar-11) each time one moves - Carry proof of your permanent resident status at all times. - [Keep track of some information to be prepared to apply for naturalization in five years](https://expatriates.stackexchange.com/q/10923/164) - If you plan to remain outside of the U. S. for six months or longer, you are strongly suggested to obtain a 'Re-entry Permit" before leaving the U.S. Did I miss something?