Please fill out the credentialing status inquiry form to let us know that you would like to be credentialed for this protocol.

Institutions that were previously credentialed to participate in another protocol will be notified if any additional credentialing steps are required.

This trial will utilize TRIAD for dosimetry digital treatment data submission. TRIAD is the American College of Radiology’s (ACR) image exchange application and it is used by the RTOG. See here for information on installing TRIAD.

In order to complete the 3D credentialing process, the following items must be completed (IGRT is optional):

• All participants are asked to complete the Facility Questionnaire.

•  Successfully complete the IGRT credentialing requirements if your institution plans to utilize PTV margins of less than 5 mm. Details can be found here.

For this study, IMRT is allowed, and IGRT is optional.

In order to complete the IMRT credentialing process the following items must be completed:

• All participants are asked to complete the Facility Questionnaires.

•  Successfully complete the IGRT credentialing requirements if your institution plans to utilize PTV margins of less than 5 mm. Details can be found here.

• Irradiate the IROC Houston's H&N phantom. Please fill in the request form online.

In order to complete the Proton credentialing (IMPT only) process, the following items must be completed:

• All participants must have completed baseline approval for proton therapy.

• All participants are asked to complete the Facility Questionnaires.

• Successfully complete the IGRT credentialing requirements if your institution plans to utilize PTV margines of less than 5 mm. Details can be found here.

• Irradiate the IROC Houston's Proton H&N phantom. Please fill in the request form online.

Note:

• Institutions that are credentialed to participate in other RTOG IMRT protocols requiring an IMRT H&N phantom irradiation need not repeat the phantom irradiation for credentialing for this protocol.