The actual bill is, I believe, around 4000 pages, but the relevant text is:
19 SEC. 5604. LETTER OF DEVIATION AUTHORITY.
A flight instructor, registered owner, lessor, or lessee of an aircraft shall not be required to obtain a letter of deviation authority from the Administrator of the Federal Aviation Administration to allow, conduct or receive flight training, checking, and testing in an experimental aircraft if— (1) the flight instructor is not providing both the training and the aircraft; (2) no person advertises or broadly offers the aircraft as available for flight training, checking, or testing; and (3) no person receives compensation for use of the aircraft for a specific flight during which flight training, checking, or testing was received, other than expenses for owning, operating, and maintaining the aircraft.