The Climb and Maintain Clearance, the RITAA Seven Departure, and the Crossing Restrictions That Vanish When ATC Changes Your Game

When ATC issues “climb and maintain” during a Standard Instrument Departure, it cancels the published altitude crossing restrictions on that SID. You continue flying the lateral route, but you climb directly to the assigned altitude. The four words separating “climb via” from “climb and maintain” define two entirely different clearance interpretations - and confusing them can create traffic separation conflicts that were never supposed to exist.

What Is a Standard Instrument Departure?

A Standard Instrument Departure (SID) is a published procedure that provides an obstacle-clearance route out of an airport, with specific waypoints, routing, altitude constraints, and often speed restrictions. They serve three simultaneous purposes: obstacle clearance, noise abatement, and traffic flow efficiency.

When you’re cleared for a SID under normal circumstances, you comply with every published constraint in sequence - all the way from the surface to your cruise altitude. That’s the baseline.

What Does “Climb Via” Mean on a SID?

“Climb via” means comply with the SID as published. All altitude restrictions. All speed restrictions. The entire vertical profile from the surface up to the cleared altitude remains in effect.

If your clearance includes “climb via,” the procedure runs exactly as briefed.

What Does “Climb and Maintain” Mean on a SID?

“Climb and maintain” is not “climb via” phraseology - and per the FAA Aeronautical Information Manual (Chapter 5), a “climb and maintain” instruction cancels the published altitude crossing restrictions on the SID.

Not modifies them. Cancels them.

You continue flying the lateral route - the waypoints, the turns, the course. But the altitude constraints at each waypoint no longer apply. You climb directly to the assigned altitude. If you received “climb and maintain one five thousand” thirty seconds after departure on the RITAA Seven out of Houston Bush Intercontinental, you climb to 15,000 feet, not to the next step-climb restriction.

Continuing to level off at intermediate waypoint altitudes out of habit means flying the clearance you briefed, not the one you were given.

Do Speed Restrictions Get Cancelled Too?

No. Published speed restrictions on a SID are treated differently from altitude restrictions. When ATC issues “climb and maintain,” altitude crossing restrictions are cancelled, but published speed constraints generally remain in effect unless ATC explicitly amends them or issues a direct speed instruction.

This creates a scenario where the altitude picture has been completely changed, but a published speed restriction at a fix is technically still active. If there’s any ambiguity, ask the controller directly. “Verify speed restrictions cancelled” is a legitimate, professional readback addition and takes four seconds of radio time.

Why Does “Climb and Maintain” Cancel Crossing Restrictions?

Terminal airspace is dynamic. Traffic surges, weather changes, and arrivals stack up. Sometimes a controller needs to get a departure through a gap in the traffic flow faster than a SID’s step-climb structure would allow.

“Climb and maintain” is the tool for that situation. It signals: the controller is taking direct responsibility for your vertical separation. They’ve already worked out the traffic picture and are micromanaging your vertical profile rather than relying on the published procedure.

This is not a workaround - it is the intended design. The FAA standardized this phraseology specifically to make these two clearance types unambiguous on both sides of the radio.

What Is “Climb Via, Except Maintain” Phraseology?

There is a hybrid clearance type that catches pilots because it sounds nearly identical to a standard “climb and maintain” - but it isn’t.

The phrase is: “Climb via, except maintain [altitude].”

This instruction keeps all the published intermediate crossing restrictions fully in effect. You still hit every waypoint altitude along the route. The only thing that changes is the ceiling - instead of climbing to whatever the SID caps at, you level off at the assigned altitude.

The word “except” is load-bearing. “Climb via” keeps everything alive. “Except maintain” only changes the final altitude. “Climb and maintain” with no preceding “climb via” means the altitude restrictions are gone entirely.

What Happens If ATC Issues “Climb and Maintain” Mid-SID?

The same rule applies regardless of where you are in the procedure. The new clearance supersedes the published constraints from the point it is issued. Restrictions you’ve already passed are done. Everything ahead of you is governed by the new altitude assignment.

Your mental model of the departure needs to update immediately. The lateral route is unchanged. The altitude structure is not.

There’s also a performance consideration. If you were planning fuel burn and climb gradient around step climbs at every waypoint, a direct climb to the assigned altitude changes your numbers. Continuous climb is generally more efficient than stepped climbs - your top-of-climb moves, and your enroute fuel picture adjusts. In turboprops and jets, this is not a trivial difference.

Why Accurate Readbacks Matter Here

Readbacks are the last line of defense against a misunderstood clearance. If ATC issued “climb via, maintain one five thousand” and you missed the “via,” your readback of “climb and maintain one five thousand” is where that gets caught. The controller hears the dropped “via,” corrects it, and you fly the right clearance.

Get the readback right and specific. It is not a formality.

Key Takeaways

• “Climb via” keeps the full SID in effect - all altitude and speed restrictions apply
• “Climb and maintain” cancels published altitude crossing restrictions; you climb directly to the assigned altitude while continuing to fly the lateral route
• Speed restrictions remain in effect after a “climb and maintain” clearance unless ATC explicitly cancels them
• “Climb via, except maintain [altitude]” preserves all intermediate restrictions and only changes the ceiling
• If “climb and maintain” is issued mid-SID, it governs everything still ahead of you
• The FAA AIM Chapter 5 and Boldmethod’s RITAA Seven analysis are the primary references