Institutional Review Board (IRB) approval is valid for a maximum period of one year, with limited exceptions specified in the Human Research Protection Program (HRPP) Manual Section 8-8, âDemonstration Projects.â The approval period will be listed on approval letters sent to researchers, including both the approval date and the expiration date.
Operational Hours: This number is valid from 7am to 10pm within your local time zone. IRS Phone Number for Taxpayers Living Abroad (International) â If you are calling about an issue with filing electronically contact the Austin Office at 512-416-7550 (7am to 6pm CST)..
Call the toll-free IRS telephone number for individuals if you are calling about a personal tax matter. This number is 1-800-829-1040. The business hours are between 7:00 a.m. and 7:00 p.m. in your local time zone. 2. Use the 1-800-829-3676 number for assistance completing your tax forms. This number is the quickest way to get in touch with a specialist trained to assist you in filling out your return forms. Business hours are 7:00 a.m to 7:00 p.m. local time, Monday through Friday.