14 CFR · Part 61
14 CFR § 61.165
Additional aircraft category and class ratings.
Rotorcraft category and helicopter class rating. A person applying for an airline transport certificate with a rotorcraft category and helicopter class rating who holds an airline transport pilot certificate with another aircraft category rating must:
Meet the eligibility requirements of § 61.153 of this part;
Pass a knowledge test on the aeronautical knowledge areas of § 61.155(c) of this part;
Comply with the requirements in § 61.157(b) of this part, if appropriate;
Meet the applicable aeronautical experience requirements of § 61.161 of this part; and
Pass the practical test on the areas of operation of § 61.157(e)(4) of this part.
Airplane category rating with a single-engine class rating. A person applying for an airline transport certificate with an airplane category and single-engine class rating who holds an airline transport pilot certificate with another aircraft category rating must:
Meet the eligibility requirements of § 61.153 of this part;
Pass a knowledge test on the aeronautical knowledge areas of § 61.155(c) of this part;
Comply with the requirements in § 61.157(b) of this part, if appropriate;
Meet the applicable aeronautical experience requirements of § 61.159 of this part; and
Pass the practical test on the areas of operation of § 61.157(e)(1) of this part.
Airplane category rating with a multiengine class rating. A person applying for an airline transport certificate with an airplane category and multiengine class rating who holds an airline transport certificate with another aircraft category rating must:
Meet the eligibility requirements of § 61.153 of this part;
Successfully complete the airline transport pilot certification training program specified in § 61.156;
Pass a knowledge test for an airplane category multiengine class rating or type rating on the aeronautical knowledge areas of § 61.155(c);
Comply with the requirements in § 61.157(b) of this part, if appropriate;
Meet the aeronautical experience requirements of § 61.159 or § 61.160; and
Pass the practical test on the areas of operation of § 61.157(e)(2) of this part.
Powered-lift category. A person applying for an airline transport pilot certificate with a powered-lift category rating who holds an airline transport certificate with another aircraft category rating must:
Meet the eligibility requirements of § 61.153 of this part;
Pass a required knowledge test on the aeronautical knowledge areas of § 61.155(c) of this part;
Comply with the requirements in § 61.157(b) of this part, if appropriate;
Meet the applicable aeronautical experience requirements of § 61.163 of this part; and
Pass the required practical test on the areas of operation of § 61.157(e)(3) of this part.
Additional class rating within the same aircraft category. Except as provided in paragraph (f) of this section, a person applying for an airline transport pilot certificate with an additional class rating who holds an airline transport certificate in the same aircraft category must—
Meet the eligibility requirements of § 61.153, except paragraph (g) of that section;
Comply with the requirements in § 61.157(b) of this part, if applicable;
Meet the applicable aeronautical experience requirements of subpart G of this part; and
Pass a practical test on the areas of operation of § 61.157(e) appropriate to the aircraft rating sought.
Adding a multiengine class rating to an airline transport pilot certificate with a single engine class rating. A person applying to add a multiengine class rating, or a multiengine class rating concurrently with a multiengine airplane type rating, to an airline transport pilot certificate with an airplane category single engine class rating must—
Meet the eligibility requirements of § 61.153;
Pass a required knowledge test on the aeronautical knowledge areas of § 61.155(c), as applicable to multiengine airplanes;
Comply with the requirements in § 61.157(b), if applicable;
Meet the applicable aeronautical experience requirements of § 61.159; and
Pass a practical test on the areas of operation of § 61.157(e)(2).
Reflects the eCFR edition current as of July 6, 2026. Retrieved from ecfr.gov on July 17, 2026.