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)..
The IRS has two toll-free numbers you can call. The first is the IRS Refund Hotline which can be reached at 800-829-1954. This number, available 24/7, is specifically for calls regarding tax refunds. If you don't have other questions regarding your taxes, try this number first.