How to Get a Common Access Card Appointment at a Military ID Office

Where to book your Common Access Card appointment

You book a Common Access Card (CAC) appointment through the RAPIDS system (Real-time Automated Personnel Identification System), which is the official scheduling tool for military ID offices. You do not call ahead or walk in — RAPIDS is where all CAC appointments are scheduled, and most military ID offices will turn you away if you arrive without a reservation.

The RAPIDS website is accessible through your military installation's personnel or human resources office, or through the Defense Manpower Data Center (DMDC) portal if you have a military email account. Some installations also have a dedicated military ID office website that links directly to RAPIDS. If you are not sure which office serves your location, contact your installation's main administrative office or search for "RAPIDS appointment" plus your base name.

Appointment availability varies by installation and season. Some offices book out weeks in advance, especially in summer or around PCS (permanent change of station) season. If no slots appear in RAPIDS, check back in a few days — offices often release new appointment windows weekly.

Key Takeaways

• You must book through RAPIDS, the official military ID scheduling system, not by phone or in person.
• Bring your military ID or dependent ID card, a valid government-issued photo ID, and your Social Security card or military personnel record.
• New CAC issuance takes about 10 to 15 minutes; renewal or replacement can take 20 to 30 minutes depending on whether your photo needs updating.
• If RAPIDS shows no available appointments, check back within a few days or contact your installation's military ID office to ask when the next batch opens.
• Bring all required documents in one visit — returning for a missing document wastes an appointment slot and delays your card.

What documents you need to bring

The military ID office requires three categories of documents: proof of identity, proof of military status, and proof of Social Security number. Bring originals, not copies, because staff must verify them against the RAPIDS database.

For proof of identity, bring a valid government-issued photo ID such as a passport, driver's license, or state ID card. If you are a dependent and do not have a photo ID yet, bring your current military dependent ID card plus a birth certificate (original or certified copy). For proof of military status, active-duty service members bring their military ID; retirees bring their retiree card; dependents bring their sponsor's military ID plus a marriage certificate (if spouse) or birth certificate (if child). For proof of Social Security number, bring your Social Security card, a W-2 form, or a tax return. If you have lost your Social Security card, bring a letter from the Social Security Administration confirming your number.

If you are applying for a CAC as a civilian contractor or Department of Defense employee, bring your civilian employment authorization letter or contract, your military ID office will tell you which specific documents they need when you call to confirm your appointment.

How long the appointment takes and what happens during it

A new CAC issuance usually takes 10 to 15 minutes from check-in to card in hand. The staff member will verify your documents against RAPIDS, take a digital photo (unless you already have one on file from the past two years), scan your fingerprints, and print your card on site. You walk out with the card the same day.

A renewal or replacement takes longer — usually 20 to 30 minutes — because the office must determine whether your photo needs updating. If your current CAC photo is more than two years old, they will take a new one. If you are replacing a lost or damaged card and your photo is recent, the process moves faster.

Bring a pen and be ready to sign forms. The office will ask you to review your information on screen before the card prints, so speak up immediately if anything is wrong — correcting errors after the card is issued requires a second appointment.

What to do if your appointment slot fills up or you need to reschedule

If RAPIDS shows no available appointments for weeks, contact your installation's military ID office directly by phone. Staff can sometimes add walk-in slots or tell you when the next batch of appointments will open. Some installations hold a small number of same-day or next-day slots for emergencies — ask if yours does, and explain your situation (PCS date, deployment, lost card, expired ID).

To reschedule an appointment you already booked, log back into RAPIDS and cancel your current slot, then book a new one. Canceling frees up the slot for someone else and prevents a no-show on your record. If you cannot access RAPIDS to cancel, call the military ID office as soon as you know you will miss the appointment.

If you miss an appointment without canceling, some installations flag your account and may require you to call ahead before rebooking. Repeated no-shows can result in a temporary hold on new appointments, so cancel if your plans change.

Special situations: dependents, retirees, and contractors

Dependents under 18 must attend the appointment with their sponsor (the active-duty or retired service member). The sponsor's military ID must be current, and the dependent's birth certificate must be original or certified. Dependents 18 and older can attend alone if they bring their sponsor's military ID plus their own birth certificate or dependent ID card.

Retirees book through the same RAPIDS system as active-duty personnel. Your retiree card counts as proof of military status. If your retiree card is expired, bring your DD Form 2 (retired military ID) or a letter from your branch's personnel office confirming your retired status.

Civilian contractors and Department of Defense civilians must book through their sponsoring office, not directly through RAPIDS. Your employer's security officer or human resources department will tell you which military ID office serves your location and what additional documentation you need. Some installations require a letter from your employer confirming your clearance level or contract end date.

Why your appointment might be delayed or canceled

Military ID offices occasionally close for training, system maintenance, or staffing shortages. If your appointment is canceled by the office, RAPIDS will send you a notification and automatically open new slots for you to choose from. Check your email (military or civilian, depending on which you used to book) within 24 hours of the cancellation.

Your appointment may also be delayed if the RAPIDS system is down or if your documents do not match the information in the military personnel database. If staff cannot verify your identity or military status on the day of your appointment, they will ask you to bring additional documents and reschedule. This is rare but happens most often with recent name changes, spelling errors in the database, or dependents whose birth certificates list a different sponsor name.

If you arrive at your appointment and your documents are incomplete, the office will not issue your card. They will cancel your appointment slot and ask you to reschedule once you have gathered everything. This is why confirming your document list before the appointment matters.

After your CAC is issued: activation and first use

Your CAC is active immediately after it is printed. You do not need to activate it or register it anywhere. You can use it to access your military installation, log into military computer systems, and use it as a government ID the same day you receive it.

If your CAC does not work in a door reader or computer system on your first try, return to the military ID office the same day. A small percentage of cards have a printing or encoding error that staff can fix on site by reissuing the card. If you wait days or weeks to report the problem, the office may ask you to pay a replacement fee.

Your CAC is valid for five years from the date of issue. The expiration date is printed on the front. You can renew it up to 120 days before it expires by booking a new RAPIDS appointment.

Frequently Asked Questions

Can I get a CAC appointment the same day or next day?

Same-day appointments are rare and usually only for emergencies like an imminent deployment or a lost card needed for base access. Call your military ID office directly and explain your situation — they may have a walk-in slot or be able to fit you in. Next-day appointments depend on availability and your installation's staffing; RAPIDS will show you what is open when you search.

What if I do not have a Social Security card?

Bring a W-2, tax return, or a letter from the Social Security Administration with your number on it. If you have never had a Social Security number, contact the Social Security Administration to apply for one before your CAC appointment — the military ID office cannot issue a CAC without one.

Do I need to bring my dependent ID card if I already have one?

Yes. Bring your current dependent ID card along with your birth certificate and your sponsor's military ID. The office uses your existing card to verify your information in the system before issuing your CAC.

What happens if I move to a different military installation?

You can renew or replace your CAC at any military ID office, not just the one where you got it. Book through RAPIDS using your new installation's office, and bring the same documents. Your CAC remains valid across all installations.

Can someone else pick up my CAC if I cannot make the appointment?

No. You must be present to have your photo taken and fingerprints scanned. The military ID office will not issue a CAC to anyone but the person whose name is on it, with no exceptions for spouses, parents, or sponsors.