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)..
IRS Toll Free Main Number: 1-800-829-1040. Here are some other useful numbers: IRS E-file Help Desk Phone number: 1-866-255-0654 - Call this number for e-filing assistance. Tax Practitioner Hotline: 1-866-860-4259 - Tax assistance for Tax Preparers. This number is only for people who prepare taxes for other tax payers. Main Tax Assistance: 1-800-829-1040 - Tax assistance for Taxpayers. this is the IRS main number give i gave you above.