4.  GRANTEE SUBMISSIONS INCLUDING PRIOR APPROVAL REQUESTS.

All grantee submissions (applications, reports, and requests, including prior approvals) are to be addressed to the grant administrator except as otherwise specified in writing by an authorized DOE official as determined by the Contracting Officer. 

All requests for prior approval must be signed by an individual who is authorized to act for the grantee organization.  The signature of the principal investigator (unless also a corporate officer or otherwise authorized) is insufficient to obtain action on a prior approval request, although countersignature by the principal investigator is not discouraged.  Requests for budget revisions shall be made using the same budget format as used in applying for the grant and must be supported by a narrative justification.  Other prior approval requests may be made by letter.