Category III Authorization

FAR 61.68 Category III Authorization

FAR 61.68 explains Category III pilot authorization requirements: certificates, flight time, practical test, and oral and flight increment standards.

In Plain English

FAR 61.68 sets the requirements for earning a Category III (CAT III) pilot authorization — the qualification needed to fly very low-visibility ILS approaches using automatic landing systems.

To apply, you must hold:

  • At least a private or commercial certificate with an instrument rating, or an ATP certificate
  • A type rating for the aircraft (if required)
  • The appropriate category and class rating

Minimum experience required:

  • 50 hours of night PIC time
  • 75 hours of instrument time (actual or simulated, with limits on sim/FTD time)
  • 250 hours of cross-country PIC time

A practical test is required for issuance, renewal, or adding another aircraft type. If you haven't tested in the past 12 calendar months, you must also meet § 61.57(c) instrument recency and have flown 6 ILS approaches in the prior 6 months (3 without an approach coupler).

The practical test has an oral increment (covering RVR, alert/decision height, missed approaches, visual cues, windshear, ILS limitations, autoland equipment, and SIC duties) and a flight increment requiring at least two ILS approaches to 100 ft AGL using an approved autoland system. This rule matters because CAT III operations demand precision and system knowledge far beyond standard IFR flying.

Regulation Text
14 CFR § 61.68
§ 61.68 Category III pilot authorization requirements. (a)A person who applies for a Category III pilot authorization must hold: (1) At least a private pilot certificate or commercial pilot certificate with an instrument rating or an airline transport pilot certificate; (2) A type rating for the aircraft for which the authorization is sought if that aircraft requires a type rating; and (3) A category and class rating for the aircraft for which the authorization is sought. (b)An applicant for a Category III pilot authorization must have at least— (1) 50 hours of night flight time as pilot in command. (2) 75 hours of instrument flight time during actual or simulated instrument conditions that may include not more than— (i) A combination of 25 hours of simulated instrument flight time in a flight simulator or flight training device; or (ii) 40 hours of simulated instrument flight time if accomplished in an approved course conducted by an appropriately rated training center certificated under part 142 of this chapter. (3) 250 hours of cross-country time as pilot in command. (c)(1) A practical test must be passed by a person who applies for— (i) Issuance or renewal of a Category III pilot authorization; and (ii) The addition of another type of aircraft to the applicant's Category III pilot authorization. (2) To be eligible for the practical test for an authorization under this section, an applicant must— (i) Meet the requirements of paragraphs (a) and (b) of this section; and (ii) If the applicant has not passed a practical test for this authorization during the 12 calendar months preceding the month of the test, then that person must— (A) Meet the requirements of § 61.57(c); and (B) Have performed at least six ILS approaches during the 6 calendar months preceding the month of the test, of which at least three of the approaches must have been conducted without the use of an approach coupler. (3) The approaches specified in paragraph (c)(2)(ii)(B) of this section— (i) Must be conducted under actual or simulated instrument flight conditions; (ii) Must be conducted to the alert height or decision height for the ILS approach in the type aircraft in which the practical test is to be conducted; (iii) Need not be conducted to the decision height authorized for Category III operations; (iv) Must be conducted to the alert height or decision height, as applicable, authorized for Category III operations only if conducted in a flight simulator or flight training device; and (v) Must be accomplished in an aircraft of the same category and class, and type, as applicable, as the aircraft in which the practical test is to be conducted or in a flight simulator that— (A) Represents an aircraft of the same category and class, and type, as applicable, as the aircraft for which the authorization is sought; and (B) Is used in accordance with an approved course conducted by a training center certificated under part 142 of this chapter. (4) The flight time acquired in meeting the requirements of paragraph (c)(2)(ii)(B) of this section may be used to meet the requirements of paragraph (c)(2)(ii)(A) of this section. (d)The practical test consists of an oral increment and a flight increment. (1)In the oral increment of the practical test an applicant must demonstrate knowledge of the following: (i) Required landing distance; (ii) Determination and recognition of the alert height or decision height, as applicable, including use of a radar altimeter; (iii) Recognition of and proper reaction to significant failures encountered prior to and after reaching the alert height or decision height, as applicable; (iv) Missed approach procedures and techniques using computed or fixed attitude guidance displays and expected height loss as they relate to manual go-around or automatic go-around, and initiation altitude, as applicable; (v) Use and limitations of RVR, including determination of controlling RVR and required transmissometers; (vi) Use, availability, or limitations of visual cues and the altitude at which they are normally discernible at reduced RVR readings including— (A) Unexpected deterioration of conditions to less than minimum RVR during approach, flare, and rollout; (B) Demonstration of expected visual references with weather at minimum conditions; (C) The expected sequence of visual cues during an approach in which visibility is at or above landing minima; and (D) Procedures and techniques for making a transition from instrument reference flight to visual flight during a final approach under reduced RVR. (vii) Effects of vertical and horizontal windshear; (viii) Characteristics and limitations of the ILS and runway lighting system; (ix) Characteristics and limitations of the flight director system auto approach coupler (including split axis type if equipped), auto throttle system (if equipped), and other Category III equipment; (x) Assigned duties of the second in command during Category III operations, unless the aircraft for which authorization is sought does not require a second in command; (xi) Recognition of the limits of acceptable aircraft position and flight path tracking during approach, flare, and, if applicable, rollout; and (xii) Recognition of, and reaction to, airborne or ground system faults or abnormalities, particularly after passing alert height or decision height, as applicable. (2)The following requirements apply to the flight increment of the practical test— (i) The flight increment may be conducted in an aircraft of the same category and class, and type, as applicable, as the aircraft for which the authorization is sought, or in a flight simulator that— (A) Represents an aircraft of the same category and class, and type, as applicable, as the aircraft in which the authorization is sought; and (B) Is used in accordance with an approved course conducted by a training center certificated under part 142 of this chapter. (ii) The flight increment must consist of at least two ILS approaches to 100 feet AGL, including one landing and one missed approach initiated from a very low altitude that may result in a touchdown during the go-around maneuver; (iii) All approaches performed during the flight increment must be made with the approved automatic landing system or an equivalent landing system approved by the Administrator; (iv) If a multiengine aircraft with the performance capability to execute a missed approach with one engine inoperative is used for the practical test, the flight increment must include the performance of one missed approach with the most critical engine, if applicable, set at idle or zero thrust before reaching the middle or outer marker; (v) If a multiengine flight simulator or multiengine flight training device is used, a missed approach must be executed with an engine, which shall be the most critical engine, if applicable, failed; (vi) For an authorization for an aircraft that requires a type rating, the practical test must be performed in coordination with a second in command who holds a type rating in the aircraft in which the authorization is sought; (vii) Oral questioning may be conducted at any time during the practical test; (viii) Subject to the limitations of this paragraph, for Category IIIb operations predicated on the use of a fail-passive rollout control system, at least one manual rollout using visual reference or a combination of visual and instrument references must be executed. The maneuver required by this paragraph shall be initiated by a fail-passive disconnect of the rollout control system— (A) After main gear touchdown; (B) Prior to nose gear touchdown; (C) In conditions representative of the most adverse lateral touchdown displacement allowing a safe landing on the runway; and (D) In weather conditions anticipated in Category IIIb operations. [Docket 25910, 62 FR 16298, Apr. 4, 1997; Amdt. 61-103, 62 FR 40900, July 30, 1997, as amended by FAA-2023-1275; Amdt. 61-157, 89 FR 92483, Nov. 21, 2024]
Oral Exam Questions a DPE Might Ask
Q1What certificates and ratings must an applicant hold to apply for a Category III authorization?
Per FAR 61.68(a), the applicant must hold at least a private or commercial pilot certificate with an instrument rating (or an ATP), the appropriate type rating if required, and the applicable category and class rating for the aircraft.
Q2What flight experience minimums must you meet before the CAT III practical test?
FAR 61.68(b) requires at least 50 hours of night PIC, 75 hours of instrument time (with limits on simulator credit), and 250 hours of cross-country PIC time.
Q3What does the flight increment of the CAT III practical test consist of?
Under FAR 61.68(d)(2), it consists of at least two ILS approaches to 100 feet AGL — including one landing and one missed approach initiated from a very low altitude — flown using the approved automatic landing system.
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FAR 61.68 — Category III Pilot Authorization Requirements