You should expect to receive your work authorization any day.
Elkhalil Law Firm, LLC
Disclaimer: This answer is for informational and educational use only. This answer does not create attorney-client relationship. For more details, I recommend a private consultation with an immigration lawyer.
I agree with my colleagues, the Notic of Action ususally says 30 days, but you should receive within about 2 weeks. If it takes longer than 1 month, you should contact USCIS. You may also check your EAD case status online to see when your actual card was mailed out, so that you will be on notice when to look out for it.
Contact immigration attorney Gintare Grigaite at 646-407-2331. Answers on AVVO do not constitute legal advice and do not form attorney-client relationship. Always consult an attorney for a legal advice.