Does EPA 608 Expire: Four Cards That Do

Turn an EPA Section 608 card over and look for a date. There is none to find. The certification never expires, and four other cards in the same tool bag do.

Appendix D to 40 CFR Part 82 Subpart F spells out what has to appear on that wallet-sized card: the name of the certifying program, the date that program received EPA approval, your name, the type of certification, a unique number that is not your Social Security number, and one sentence saying you passed an exam on how to responsibly handle refrigerants. Nothing about validity. Nothing to renew. The card is a receipt for a test you passed once.

Those other four run on clocks set at four different speeds: 24 months, 12 months, five years, two years. Two of them are enforced by an organization that will never send you a reminder. One stopped being a piece of paper in the middle of 2025, and plenty of drivers still do not know it.

A word on sourcing before the clocks. Rule text here comes from the eCFR, current to August 1, 2026; the rest comes from the issuing agency's own page. Both were read on August 22, 2026. NATE's page is the one exception — it would not load that morning — so it is quoted from an Internet Archive capture with the date attached where it appears.

The 608 rule reserved a right to expire and has never used it

The sentence that matters is short. 40 CFR 82.161(a)(5): "The Administrator reserves the right to specify a requirement for technician recertification at some future date, if necessary, by placing a notice in the Federal Register."

That line reads like filler on the way past, which is the wrong place to put the emphasis. Sitting one paragraph above it is the provision with teeth. Under 82.161(a)(3), failure to demonstrate proper recovery procedures, or failure to abide by any provision of the subpart, "may result in revocation or suspension of the certificate," and if a technician's certificate is revoked, "the technician would need to recertify before maintaining, servicing, repairing, or disposing of any appliances." A card with no expiration is not a card that cannot be taken away. It just cannot lapse on its own.

The rule also assumes you still have it. Section 82.161(a)(4) requires technicians to "keep a copy of their certificate at their place of business" and to hold a copy "until three years after no longer operating as a technician." And the card is what opens the supply house counter: under 82.154(c)(1), refrigerant may be sold only where the buyer is certified as a Type I, II, III, or Universal technician, or employs one and provides proof of it to the seller.

So the practical risk with 608 is not the calendar. It is losing the thing. EPA's own page opens with the fact most technicians learn at the worst possible moment: "EPA does not issue certification cards and cannot replace a lost certification card." Its four steps run in order. If the organization that tested you is still operating, contact them, because "the organization is required to maintain records of cards it issues." If it closed but you kept documentation of passing, ESCO Institute or Ferris State University will issue a new card against that proof. If your certifying organization went out of business and left no trail, contact EPA. And if none of those apply, step 4 says it without cushioning: you retake the test.

Step 1 works because of a line in Appendix D that nobody reads. Certifying programs must keep the names, scores, dates, and locations of every test they administer, and those records "must be maintained indefinitely, unless transferred to another certifying program or EPA." Your certification outlives the plastic, as long as you can still name the program.

Five clocks, one wallet

NATE gives you two years and will not let you bank a third

NATE certifications run in two-year cycles, and the cycle is the box you have to fill. Sixteen continuing education hours must be earned inside that period, in subjects tied to the specialty you hold, though general topics such as safety, electricity, motors, controls, and codes count toward any specialty. Overflow is worthless: "Since CEHs must be accrued during your certification period, you will start back at zero credits once you recertify." You also cannot pay early to buy room, because certifications "must be within one year of expiration in order to recertify" and early renewal "does not change the 2 year certification period."

Miss the date and there is a 120-day grace window in which you can still submit the remaining hours or retake the specialty exam. One sentence in it is worth reading twice before a job interview: "You are not considered NATE certified if all of your certifications are in their grace periods." Past 120 days you have lapsed, and coming back means retaking both CORE and the specialty, which is the whole original exam sequence. Deployed service members are handled separately. From the day a certified technician deploys, the certification is deferred and the expiration dates are extended to reflect the time in service.

The fees on that page are 25 dollars per specialty with each additional specialty at 5 dollars, service recertification carrying installation at no extra cost, and heat pump carrying air conditioning. Those figures come from the Internet Archive's November 11, 2025 capture of the page, because natex.org sat behind a Cloudflare challenge on August 22, 2026. The April 23, 2025 capture carries the same numbers, so they held across at least those seven months, which is a reason to expect them and not a reason to rely on them. Confirm the current amount before you pay. The two-year cycle, the 16 hours, and the 120-day grace are consistent across NATE's published material.

One distinction trips people up in HVAC. Section 608 is federal law; NATE is a voluntary industry credential. Letting NATE lapse costs you a manufacturer program or a wage step. Losing 608 costs you the right to open a sealed system for pay.

MSHA does not issue you a card, it issues your employer a form

Run pipe, wire, or a service truck onto a sand, gravel, surface stone, or surface limestone operation and you are inside 30 CFR Part 46. Underground and most other mines run under Part 48. Both set the same annual number, and only one of them writes the clock out. Part 46 does: under 46.8(a)(2) the 8 hours come due "no later than 12 months after the previous annual refresher training was completed." Part 48 never repeats that sentence. Its refresher sections, 48.8(a) underground and 48.28(a) surface, say that "each miner shall receive a minimum of 8 hours of annual refresher training" and leave the single word annual to carry the interval.

What comes out of that day is not a card in any regulated sense. Section 46.9 requires the operator to record and certify the training on MSHA Form 5000-23, printed with the warning "False certification is punishable under § 110(a) and (f) of the Federal Mine Safety and Health Act" in bold, signed by the person the mine's training plan names as responsible for health and safety training. You are entitled to a copy on completion of the 8 hours.

The retention rules are where contractors get hurt. Under 46.9(h) the operator keeps refresher records "for only two years," and keeps your certificates "for at least 60 calendar days after a miner terminates employment." Part 48 reaches the same floor by a different sentence. Its 48.9(c) keeps certificates for currently employed miners at the minesite "for 2 years, or for 60 days after termination of employment," and one paragraph earlier, at 48.9(a), sits the line worth quoting when you ask for copies: "When a miner leaves the operator's employ, the miner shall be entitled to a copy of his training certificates." Part 46 puts the same thing as a duty on the operator, at 46.9(f).

Sixty days. Ask on your last day at that pit, not when the next one asks for proof.

TWIC prints a date, and TSA is asking for sixty days

The Transportation Worker Identification Credential is the one card here that behaves the way people expect a card to behave. TSA's TWIC page lists a non-refundable fee "valid for five years": 124 dollars for a new applicant, 93 dollars at the reduced rate, 124 dollars for an in-person renewal, 116 dollars online, and 60 dollars to replace a lost or damaged card.

The number that costs people work is not a fee. TSA's notice on that same page recommends enrolling, renewals included, "a minimum of 60 days before applicants require a valid TWIC," because processing times "may exceed 45 days." A refinery turnaround does not hold a slot for six weeks while a background check runs. Note also that revoked cards and replaced ones share a fate. The Canceled Card List and the Visual Canceled Card List carry both: cards revoked after recurrent vetting, and cards replaced because they were lost, stolen or damaged. TSA updates them daily so facility and vessel operators can tell whether a card handed across a gate is still good. Being on the list, TSA adds, "cannot be used to infer derogatory information about the cardholder; it simply indicates the card is no longer valid." An old card dies when its replacement is issued.

Eligibility is a separate question from timing, and TSA screens against a list of disqualifying criminal offenses with a waiver route attached. If that is your situation, the mechanics of asking an agency in advance are in predetermination requests when you have a conviction.

The DOT medical card stopped being paper in June 2025

The interval has not changed. 49 CFR 391.45(b) requires a new examination for any driver not certified during the preceding 24 months. Several conditions cut that to 12 months: an exempt intracity zone under 391.45(c), insulin-treated diabetes under 391.45(e), and the vision standard route under 391.45(f). Twenty-four months is a ceiling rather than a guarantee. Section 391.45(g) sends a driver back for examination if that driver's "ability to perform his or her normal duties has been impaired by a physical or mental injury or disease," and since June 23, 2025 subsection (h) does the same for anyone a medical examiner has found not physically qualified under 391.43(g)(3).

What changed is the paper. Since June 23, 2025, under 391.43(g)(2)(ii), the examiner completes a paper certificate only where "the medical examiner identifies that the person examined will not be operating a commercial motor vehicle that requires a commercial driver's license or a commercial learner's permit." For CDL and CLP holders the result moves to FMCSA electronically and on to the licensing state, and 391.41(a)(2)(i)(B) confirms such a driver "no longer needs to carry on his or her person the medical examiner's certificate." One more line in the same section deserves attention. Under 391.43(g)(3), when an examiner finds a person not physically qualified, "all medical examiner's certificates previously issued to the person are not valid." A card in your pocket with eleven months left on it stops meaning anything the moment a later exam goes the other way.

This is not only a trucking problem. A commercial motor vehicle under 49 CFR 390.5 is any self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property when it has a gross vehicle weight rating or gross combination weight rating, or an actual gross weight, of 10,001 pounds or more, whichever is greater. A loaded service truck pulling a trailer across a state line can clear that without anyone in the shop thinking of it as a CDL job, and that driver is exactly the one who still receives paper and still has to have it on their person under 391.41(a)(1)(i). What the physical and the license itself cost is broken out in the real cost of a CDL in 2026, line by line.

OSHA's card has no expiration and a five-year replacement window

Federal OSHA 10 and 30 cards do not expire. OSHA once printed expiration dates on Maritime cards and stopped: as of April 1, 2019, those cards do not expire either, and training completed before that date remains valid.

The limit is on reissue, and OSHA states it in one line: trainers have 90 days after course completion to issue cards, and "cards cannot be issued if completed 5 years ago." OSHA keeps nothing that would help you past that, saying so directly: "OSHA does not keep records of Outreach training classes conducted by authorized trainers." Authorized trainers hold their records for five years. OSHA does not verify individual student cards, citing privacy, and does not recognize any national verification database. Plastic cards carry a QR code on the back that reaches the OTI Education Center which processed it, which is the only lookup the agency acknowledges.

The rest of that page is worth reading before you argue with a gate guard. None of the Outreach courses "is considered a certification," the program is voluntary, and it does not satisfy any training requirement written into an OSHA standard. Where a retake gets demanded, the demand is coming from a state law, a city ordinance, an owner specification, or a union agreement, and OSHA's FAQ hands the decision to whoever wrote it: any determination on what will be accepted "must be made by the organization mandating the training." Those overlays run on their own intervals and deserve their own article, with the statutes quoted rather than summarized.

The two cards with no date are the two you can lose permanently

Line the five up and the pattern inverts. The cards that expire, NATE and TWIC and the medical certificate and the refresher clock, are all backed by an organization that keeps your record and will happily sell you a renewal. The two that never expire, 608 and OSHA Outreach, are the two whose proof lives in a filing cabinet you do not own: one held indefinitely, one held for exactly five years.

So the upkeep is not the same for both halves. For the expiring cards you write down a date. For the permanent ones you photograph both sides today and write down the certifying organization, the trainer's name, and the phone number while they are still legible, then keep that file somewhere that survives a truck fire and a change of employer. A state journeyman or contractor license is a sixth animal again, with its own renewal cycle and its own rules about crossing a line, which is the subject of electrician license reciprocity: which states accept which.

Rules change on the schedule of whoever writes them. This reading is dated August 22, 2026, against CFR text current to August 1, 2026, and each section number above links out to its source, so the wording can be checked again on the day it matters to you.