14 CFR § 61.327

Except as specified in paragraph (c) of this section, if you hold a sport pilot certificate and you seek to operate an aircraft meeting the performance limits and design requirements of § 61.316 that is an airplane with a VH less than or equal to 87 knots CAS you must—

Receive and log ground and flight training from an authorized instructor in an airplane that has a VH less than or equal to 87 knots CAS; and

Receive a logbook endorsement from the authorized instructor who provided the training specified in paragraph (a)(1) of this section certifying that you are proficient in the operation of aircraft that is an airplane with a VH less than or equal to 87 knots CAS.

If you hold a sport pilot certificate and you seek to operate an aircraft meeting the performance limits and design requirements of § 61.316 that has a VH greater than 87 knots CAS you must—

Receive and log ground and flight training from an authorized instructor in an aircraft that has a VH greater than 87 knots CAS; and

Receive a logbook endorsement from the authorized instructor who provided the training specified in paragraph (b)(1) of this section certifying that you are proficient in the operation of aircraft with a VH greater than 87 knots CAS.

The training and endorsements required by paragraph (a) of this section are not required if you have logged flight time as pilot in command of an airplane with a VH less than or equal to 87 knots CAS prior to April 2, 2010.