(a) Any person may request a testing exemption under Sec. 89.905.
(b) Any nonroad engine manufacturer may request a national security exemption under Sec. 89.908.
(c) For nonroad engine manufacturers, nonroad engines manufactured for export purposes are exempt without application, subject to the provisions of Sec. 89.909.
(d) For eligible manufacturers, as determined by Sec. 89.906, manufacturer-owned nonroad engines are exempt without application, subject to the provisions of Sec. 89.906.
(e) For any person, display nonroad engines are exempt without application, subject to the provisions of Sec. 89.907.