The MOSAIC final rule 2026 rollout finishes on July 24, 2026, roughly twelve weeks from now. Phase 1 went live on October 22, 2025 and reshaped what sport pilots can fly. Phase 2 is the manufacturing and certification side, and it replaces the old Light-Sport Aircraft definition with a new performance-based framework called Part 22. Most pilots have heard the headlines and very few have read the actual numbers. This post walks through what genuinely changes for the people flying 172s, Cherokees, and SR20s on the weekends, and what stays exactly the same.
Part 22 in plain English
Part 22 is the new airworthiness chapter the FAA wrote to replace the 2004-era LSA framework that lived inside 14 CFR 1.1. The old definition pinned light-sport aircraft to a 1,320 lb maximum takeoff weight, two seats, fixed gear, fixed-pitch prop, and a 120 knot Vh. That whole stack is gone from July 24 onward, replaced by performance-based limits that look more like a real certification standard than a checklist.
Under Part 22 as documented by AOPA, a light-sport category airplane manufactured to the new rule can have:
- Up to four seats (two seats for gliders and weight-shift control)
- A clean stall speed (Vs0) of up to 61 KCAS with flaps extended
- A maximum level-flight speed (Vh) of up to 250 KCAS
- No maximum takeoff weight cap — the old 1,320 lb ceiling is removed entirely
- Fixed or retractable landing gear
- Any propeller type, including constant-speed
- Any number or type of engines other than rockets, including electric and hybrid
That is a much larger envelope. A Part 22 airplane in 2027 could be a four-seat composite tourer with retractable gear, a constant-speed prop, and an electric powertrain. The certification path is faster and cheaper than Part 23, which is exactly why the FAA wrote it. The flip side is that buying a Part 22 airplane does not automatically give a sport pilot the right to fly it. The pilot privilege rules are a separate document, and they are stricter than the manufacturing standard.
Sport pilot privilege expansion (already live)
Phase 1 of MOSAIC took effect on October 22, 2025 and rewrote 14 CFR 61 Subpart J. The key change was a new section, §61.316, that defines which aircraft a sport pilot can fly using performance criteria rather than category. Under §61.316, a sport pilot can act as PIC of any airplane that meets all of these:
- Clean stall speed (Vs1) of 59 KCAS or less at maximum takeoff weight
- Up to four seats (with the long-standing one-passenger rule still in force)
- Non-pressurized cabin
- Fixed gear unless the pilot holds the retractable endorsement
- Fixed-pitch or automated prop unless the pilot holds the constant-speed endorsement
Sport pilots also picked up three new endorsement pathways in Phase 1: night VFR (with a third-class medical or BasicMed and specific training), constant-speed propeller, and retractable landing gear. None of those existed under the old sport pilot certificate. The IFR ban stayed in place — sport pilots cannot file or fly IFR regardless of medical class.
The October 2025 changes are the baseline. Phase 2 does not modify pilot privileges. It modifies what new aircraft factories can build and certify. The two phases stack but they answer different questions.
What changes for Cessna 172 / 182, Piper Cherokee, Cirrus SR20 owners
The most useful exercise is to walk through the airplanes parked at the average GA ramp and check them against §61.316. Stall speed is the gate. Use the published Vs0 or Vs1 from the AFM or POH — vortex generators and STOL kits do not count.
Cessna 172
The 172 family is the headline aircraft for MOSAIC, but eligibility is model-by-model. A 172N at gross has a published Vs1 around 47 KIAS clean and 41 KIAS with full flaps. That sits well under the 59 KCAS sport-pilot ceiling once you correct IAS to CAS, so a 172N is generally eligible. A 172R or 172S with the heavier 2,550 lb gross weight is borderline because the published Vs0 with flaps is closer to 48 KIAS at gross — still under the limit, but worth a careful read of the AFM rather than a vibe check. The 172 stays on its standard airworthiness certificate, gets maintained under Part 43 like always, and an annual is still an annual. The only thing that changes is who can legally rent it solo.
Cessna 182
The Skylane is over the line. A 182P or 182Q has a published Vs1 around 56 KIAS at gross, which corrects to roughly 60 KCAS. That is on the wrong side of the 59 KCAS limit and the rule does not bend. A sport pilot cannot legally operate a stock 182 even after July 24, 2026. Sport pilot certificate holders who want to fly the 182 will need to pursue a private certificate, or fly an eligible aircraft like the 172 in the meantime.
Piper Cherokee 140
The PA-28-140 has a published Vs1 of 55 KIAS at 2,150 lb gross. That corrects to roughly 54 KCAS, which sits comfortably inside the §61.316 envelope. Cherokee 140s are a good Phase 1 fit. The PA-28-180 Archer is also generally eligible at around 55 KCAS. The PA-28-181 Archer II with the heavier gross weight is closer to the line and worth checking against the specific airframe's POH.
Cirrus SR20
The SR20 does not qualify. Published Vs1 is around 65 KIAS, which is over 59 KCAS by a meaningful margin. MOSAIC was not written to put sport pilots into SR20s, and Phase 2 does not change that. SR20 and SR22 owners still need a private certificate, and the airplane still gets flown under standard category rules.
The pattern across the fleet is clear: trainers and lower-performance four-seaters are in, high-performance singles are out, and anything pressurized or above 59 KCAS clean stall stays on the private-pilot side of the line.
Night flight, IFR, and the new training pathways
Three of the most-asked questions on sport pilot forums are about night, IFR, and instructor pathways. MOSAIC answers two of them and leaves one alone.
Night VFR is now available to sport pilots under §61.329. The training requirement is three hours of night dual including at least one cross-country leg of 25 nautical miles or more, plus ten takeoffs and ten full-stop landings at night. A logbook endorsement from a CFI is required, and the medical pathway tightens. Night flight requires a third-class medical or BasicMed, not the driver's license medical.
IFR remains off-limits for sport pilots. MOSAIC does not change this. The instrument rating still requires a private certificate or higher, and the regulations explicitly prohibit a sport pilot from operating IFR or in IMC. What MOSAIC does change is the universe of aircraft an instrument-rated private pilot can fly. A private pilot with an instrument rating and a Part 22 airplane underneath them will be able to fly IFR in airplanes that did not exist as light-sport options before — four-seat composite tourers with constant-speed props are now possible inside the framework.
CFI-Sport is a real pathway now. Phase 1 reshaped the CFI-Sport certificate so it requires fewer hours and a less complex base certificate than a full CFI. Pilot Institute's analysis notes that CFI-Sport candidates can hold a sport or private certificate as the base, with around 150 hours of total time, versus a commercial certificate plus instrument rating and 250 hours for a traditional CFI. Knowledge tests are still required. Flight schools that have been bottlenecked on instructor supply now have a faster path to add capacity, especially for primary training.
The traffic-awareness sidebar
MOSAIC will pull more weekend pilots into shared airspace. Sport pilots who previously stayed on the edges of Class D will start training cross-country in 172s and Cherokees, and the new CFI-Sport pipeline will put more student pilots into the system overall. That is good for general aviation. It also means more low-time, lower-experience traffic in the same shelves and corridors that experienced pilots already share.
For pilots without a panel ADS-B In install, this is the moment when a portable receiver starts paying for itself. Electronic conspicuity in general aviation is the broader trend MOSAIC accelerates rather than causes. A portable ADS-B In unit on the glareshield does not stop a midair on its own, but it surfaces traffic that the eye misses, especially in the converging-pattern situations that get busier when training volume goes up.
Frequently Asked Questions
When does MOSAIC Phase 2 take effect?
Phase 2 takes effect on July 24, 2026. That is the date the new Part 22 airworthiness framework becomes active for new aircraft certification, and the date the old "light-sport aircraft" definition is removed from 14 CFR 1.1. Phase 1, which covered sport pilot privileges, has been in effect since October 22, 2025.
Does MOSAIC let sport pilots fly a Cessna 172?
Yes, for most 172 variants. Under §61.316 a sport pilot can operate any airplane with a clean stall speed of 59 KCAS or less, four seats or fewer, a non-pressurized cabin, and fixed gear and prop (or with the appropriate endorsements). A stock 172N is well under the limit. A 172R or S at full gross weight is closer to the line and worth checking against the specific POH. The 172 itself does not become an LSA — it stays on its standard airworthiness certificate and its maintenance requirements do not change.
What is Part 22, and how is it different from Part 23?
Part 22 is the new FAA airworthiness chapter for light-sport category aircraft, effective July 24, 2026. It replaces the old industry-consensus standards that were attached to the LSA definition in Part 1. Part 22 uses performance-based limits (61 KCAS Vs0, 250 KCAS Vh, four seats, no MTOW cap) and is intentionally simpler and cheaper to certify against than Part 23, which governs normal-category general aviation airplanes. Part 23 is for Cirrus SR22s, Bonanzas, and Mooneys. Part 22 is for the next generation of trainers, light tourers, and electric platforms.
Can I fly a four-seat aircraft as a sport pilot under MOSAIC?
You can fly a four-seat aircraft, but you can only carry one passenger. The four-seat allowance is about the airplane, not the operation. The long-standing sport pilot one-passenger rule did not change. Two of the four seats will be empty on every legal sport pilot flight in a four-seater.
Does MOSAIC change BasicMed or third-class medical requirements?
No. MOSAIC does not modify BasicMed or third-class medical rules at all. What it does is clarify which medical pathway applies to which sport pilot operation. Daytime VFR sport pilot flying can still use the driver's license medical, with the existing disqualifier that any prior FAA medical denial, suspension, or revocation knocks the driver's license option out. Night VFR under the new sport pilot endorsements requires a third-class medical or BasicMed.
What does MOSAIC mean for flight schools?
Two things. First, the CFI-Sport pathway is more accessible, which helps schools add instructor capacity faster. Second, schools can train sport pilot candidates in the same 172s and Cherokees they already operate, instead of needing dedicated S-LSA airframes. That changes the unit economics of primary training. Portable ADS-B for student pilots and flight schools covers the equipage side of that shift in more detail.
Will MOSAIC raise my insurance rates?
Early signals from the underwriting market are calm. Hull and liability rates for owner-flown aircraft have not moved meaningfully because of MOSAIC, and most underwriters were already pricing risk on hours, ratings, and aircraft type rather than certificate level. The practical advice from the brokers writing this business: notify your insurer before you start operating an aircraft under sport pilot privileges, send them the POH stall-speed page if you are renting, and expect some carriers to require BasicMed even where the FAA would accept a driver's license medical. Rates may shift once a few claims years of data come in, but nothing about Phase 2 is structurally bad for premiums.
Read the FAA MOSAIC fact sheet, pull the AFM for your airplane and check Vs1 against 59 KCAS, and have a real conversation with your CFI about whether starting Part 22 training makes sense for your goals. If you fly mixed-equipage airspace and have not yet sorted out traffic awareness, the from flight school to solo cross-country post is a useful next read.
