Welder Continuity Log: Who Signs and Keeps It
A welder's qualification does not expire on a date. It expires on a gap.
Six months without running a bead with a given process, and the paperwork behind you stops saying you are qualified for it. Same welder on day 181. Same hands. Different file.
That much circulates on every jobsite. What circulates less is the second half: the document proving the gap never happened is almost never yours. It belongs to whoever employed you on the day the clock ran out, it carries a signature that is not yours, and in nearly every state no government agency has ever laid eyes on it.
Three rulebooks set that six-month interval. Two of them cost money to read. Below is what each one does with your record, in the only terms that matter when a QC manager asks for it eleven months from now: who writes it, who signs it, who keeps it, and for how long.
The clock runs on the process, not on the welder
Qualification is granted per welding process, and it lapses per welding process. A pipefitter who spent the spring on SMAW and has not touched GTAW since February is current in one and lapsed in the other, out of the same pair of hands on the same payroll.
AWS D1.1 carries this in its qualification clause, under a heading usually given as Period of Effectiveness. The clause is behind a paywall and I have not read it in the original, so what follows is the wording as training material and code forums have quoted it for two decades, attributed there to the 2015 edition at 4.2.3.1: a welder's qualification "shall be considered as remaining in effect indefinitely unless (1) the welder is not engaged in a given process of welding for which the welder or welding operator is qualified for a period exceeding six months, or (2) there is some specific reason to question a welder's or welding operator's ability." Section IX of the ASME Boiler and Pressure Vessel Code is reported the same way, with the lapse at QW-322 and a renewal provision at QW-322.2 that is generally described as letting a lapsed welder restore a process by welding a single test coupon rather than repeating the original test sequence. Treat every one of those clause numbers as secondhand until you have the edition itself in front of you.
Notice what the second condition in the D1.1 sentence does. Six months of inactivity is one trigger. A specific reason to question your ability is the other, and no calendar protects you from that one.
Two versions of this rule are free to read, and they are the strict ones
Pipeline work is where the six-month rule leaves the private standards and becomes federal regulation, which means the exact words are public. Read the scope before borrowing the language: these parts govern gas and hazardous liquid pipelines and nothing else. A structural steel job answers to D1.1 and to the contract documents, not to Title 49. I read the following in the eCFR on 4 September 2026, against a Title 49 last amended 1 September 2026 and current as of 2 September 2026.
For gas pipelines, 49 CFR 192.229(b): a welder "may not weld with a particular welding process unless, within the preceding 6 calendar months, the welder or welding operator was engaged in welding with that process." An alternative follows in the same paragraph, stretching to 7 1/2 months where there is a weld tested and found acceptable under API Std 1104 inside that window.
For a welder qualified under 192.227(a), 192.229(c)(1) asks for a test rather than mere activity once the pipe runs at a hoop stress of 20 percent or more of specified minimum yield strength. One weld tested and found acceptable within the preceding 6 calendar months, or an ongoing status maintained by tested welds "at least twice each calendar year, but at intervals not exceeding 7 1/2 months."
Hazardous liquid pipelines are stricter still. 49 CFR 195.222(b) requires both things at once. Within the preceding 6 calendar months the welder must have "(1) Engaged in welding with that process; and (2) Had one weld tested and found acceptable under section 9 or Appendix A of API Std 1104." Working steadily is not enough there. Somebody has to have cut out a weld and tested it.
Read the three paragraphs together and the shape of the problem shows up. Each is written as a prohibition on the welder. Each can only be answered with a record kept by somebody else.
Where the trail goes behind a paywall
This site quotes section numbers because a section number is the difference between an answer and a rumor. For D1.1 and Section IX I cannot give you the number and the sentence together, and saying so beats faking it.
Both are sold documents. What AWS does publish free is the front matter and index of the 2020 edition, and that alone defuses a trap worth knowing about. The 2020 edition reorganized the code and moved qualification into Clause 6. In AWS's own published index, welder and welding operator performance qualification is indexed at 6.2.2 and 6.2.3.1, with tack welders at 6.2.3.2. So a web page citing 4.2.3.1 is quoting a pre-2020 edition, and half the pages that come up on this question do. The edition named in your contract documents is the one that governs the job, and it is the number to check before anybody argues a clause at anybody.
What I verified in the original: the federal regulations above, ASME's free data form, the AWS pages and forms cited below, and the two New York City provisions at the end, read in the enacted local laws on nyc.gov rather than in one of the unofficial code mirrors. Anything attributed to the body text of D1.1 or Section IX is flagged where it appears.
The record is the organization's, and the signature block says so
Download ASME's free Form QW-484A, the suggested format for a Welder Performance Qualification, and read the bottom of the sheet instead of the middle. One sentence sits above the signature: "We certify that the statements in this record are correct and that the test coupons were prepared, welded, and tested in accordance with the requirements of Section IX of the ASME BOILER AND PRESSURE VESSEL CODE." Under it, three fields. Date. Certified by. Organization.
Your name is at the top of that form. The company's is at the bottom, attached to the promise. That is the entire reason a welder qualification behaves unlike a license. It is one organization's certified statement about a test it supervised, not a permission slip issued to you. The structure matches an experience affidavit filed with a licensing board, where the value of the document lives in who signed it, except that no board ever receives this one.
D1.1 assigns the paperwork the same way. Its clause 6.19 is titled Preparation of Performance Qualification Forms, and inspection of welder, welding operator and tack welder qualifications belongs to the inspector at clause 8.4. Contractor prepares. Inspector verifies. The welder holds a copy if somebody hands one over.
On gas pipelines the retention periods are spelled out, in two places that are easy to mistake for each other. The welder one is 49 CFR 192.227(c): for steel transmission pipe installed after July 1, 2021, records of each individual welder's qualification at the time of construction must be retained a minimum of five years following construction. The other, 49 CFR 192.807, sits in a different regime entirely, Subpart N, the operator qualification program, which runs on "covered tasks" and is not the same instrument as a welder performance qualification. It requires an operator's qualification records to include the identification of the qualified individual, the covered tasks that individual is qualified to perform, the dates of current qualification, and the qualification methods, and it holds that "records of prior qualification and records of individuals no longer performing covered tasks shall be retained for a period of five years."
Five years, in the operator's filing cabinet. Not in yours.
Nobody's rulebook prints the continuity log itself
Here is the gap that produces the argument in the jobsite trailer. The codes state a consequence, not a format. Six months of not welding a process ends the qualification for it. No federal text I could find, and by every account no clause of D1.1 or Section IX either, hands anybody a ruled sheet headed Welder Continuity Log with columns to fill in.
What exists instead is company practice. A quality manual describes a continuity record, and in the field that turns out to be a spreadsheet a QC clerk updates monthly, or a column on a weld map, or a signed production weld log, or a folder that stays empty until a client audit asks for it. All four are common. Only the last is a problem, and it becomes your problem at a hiring gate two years later, when the company that owned the folder has been sold and the clerk has moved to another state.
Nothing in this system says you are entitled to a copy. Other card systems write that entitlement down: 30 CFR 46.9(d) makes a mine operator certify each training record and hand the miner a copy, and 46.9(f) makes it produce the file on request when the miner leaves. Welding has no equivalent sentence, so the copy is something you ask for, while asking still works.
Four things to ask for before you leave, and they fit inside a phone photo. The signed WPQ or welder qualification test record with the organization's name on it. The ranges qualified. The dates and processes recorded for the months you worked there. The name and phone number of whoever signs quality documents. A folder of your own beats a good relationship with a QC manager who has since changed jobs.
The one credential built to travel, and what keeping it costs
The AWS Certified Welder program is the piece of this that answers to your name instead of a company's. AWS holds the record, so the six-month clock is administered by the issuer rather than by whoever signs your timecard. On its Certified Welder Program page, AWS states it plainly: certification "remains valid as long as continuity is maintained," maintained by submitting documentation "every six months confirming that you continue to perform the welding process for which you were certified," and "as long as continuity requirements are met and maintenance forms are submitted on time, your certification can remain active indefinitely."
The Maintenance of Welder Certification Form is where the details live. The copy I read carries the date January 1, 2023, so confirm the amounts at cw.aws.org before paying anything. Fees move; forms sit still.
- Verification of continuity. Separate date boxes for SMAW, GMAW, FCAW, GTAW and Other. "The date the process was last used must fall within 6 months prior to your certification expiration date to show continuity."
- Who signs. Employer, Supervisor, Customer, or Accredited Test Facility, circle one. The signature "certifies that the above-named welder used the welding process(es) on the dates indicated." Read that list twice if you are between jobs or working for yourself, because a customer's signature counts.
- The interval follows the code you tested under. Certifications under Supplement C or D9.1, the sheet metal welding code, are maintained every 12 months. D1.1 and most others, every 6.
- Late. A 60-day administrative extension exists, and during it "your certification will be considered expired." Submit inside the window with the requirements met and the renewal dates back to the expiration. The form's own example: issued December 1, 2021, expires June 1, 2022, extension to August 1, 2022, and after August 1 "welder must test again, to regain certification."
- Money. $35 renewal, or $85 where the $50 late fee applies.
- Paper is refused. Everything goes through cw.aws.org, and forms arriving by mail or email are returned to the sender.
The other half of portability is that a stranger can check the number. AWS runs a public lookup, Certified Welder QuickCheck, which returns the certification and its expiration date from the number on the wallet card. No employer-held WPQ has anything like that standing behind it. Auditing the whole wallet is a habit worth keeping anyway, since the intervals never line up, which is the subject of the four cards that expire while EPA 608 never does.
Where a city turns continuity into a license
New York City is the place this stops being private paperwork. Administrative Code section 28-407.1, enacted by Local Law 33 of 2007, states that it is "unlawful to perform manual welding work on any structural member of any building in the city unless such work is performed by a person licensed as a welder under the provisions of this article." Section 28-407.3, in the wording given it by Local Law 141 of 2013, adds that "as a condition of license renewal and reinstatement, a licensed welder shall provide evidence satisfactory to the department that such licensee is fit to perform the work." Those two files are the enacted text on the city's own server, and both are long, so search them by section number.
The Department of Buildings does not start that process on your word. Its welder license guide, revised June 2021, requires either the AWS Certified Welder SMAW credential covering groove and fillet welds in the flat, horizontal, vertical and overhead positions at unlimited thickness with 3G and 4G, base metal A36, or the New York State DOT Field Welder Certification over the same ground. Then a DPL1 form, a visual acuity test form, a physical completed within 90 days of the application, a child support certification, proof of residence, and a $330 background investigation fee on that revision of the guide. Applications, reissuances and renewals run through DOB NOW: Licensing. Once the department's approval letter arrives you have one year to finish collecting the card, or the process can start over, background check included. The old Class 1, 1R, 2, 2R, 3, 3R and 4 designations are gone; DOB issues one welding class-type license now.
Follow that chain backward and it ends on a signature line in a jobsite trailer. The city license rests on an AWS certification, and the AWS certification stays alive because a supervisor or a customer signed a form saying you ran SMAW in March. In New York a foreman's signature sits upstream of a municipal license, which is heavier freight than most people think they are handing across a desk. The site-access cards a general contractor asks for at the gate run the other direction, federal in origin and local in enforcement, which is the OSHA 10 versus OSHA 30 question.
The four columns to keep in your own notebook
Date. Process. The WPS or procedure number you welded to. The employer and the job. Add the name of the person who could sign for it, and update the page the week something changes rather than the week you need it.
That notebook proves nothing to an auditor on its own. What it does is tell you which of your qualifications is closest to dying, and give you names to call when a form needs a signature and you are three jobs downstream of the person who watched you weld. Employers keep continuity records because a regulator or a client will eventually ask them to produce one. Nobody keeps yours for that reason.
Everything above was read on 4 September 2026. Standards get revised on their own schedule and clause numbers move with them, so verify the AWS and ASME wording in the edition your contract names before you rely on it.
Frequently asked questions
Does a welding certification expire after six months?
The qualification lapses after six months without using that process, which is not quite the same as a date printed on a card. The federal version is written out where anyone can read it. 49 CFR 195.222(b) says no welder on a hazardous liquid pipeline may weld with a process unless, within the preceding 6 calendar months, the welder has both engaged in welding with that process and had one weld tested and found acceptable under section 9 or Appendix A of API Std 1104. The gas equivalent at 49 CFR 192.229(b) requires that the welder was engaged in welding with that process within the preceding 6 calendar months, with an alternative running 7 1/2 months where a weld was tested and accepted. AWS D1.1 and ASME Section IX set the same six-month interval in their own words, and those two documents are sold rather than published.
If I change employers, does my welder qualification go with me?
The employer-side qualification usually does not. Look at the bottom of ASME's own free form, QW-484A: the signature block puts 'Organization,' 'Date' and 'Certified by' underneath the sentence 'We certify that the statements in this record are correct and that the test coupons were prepared, welded, and tested in accordance with the requirements of Section IX of the ASME Boiler and Pressure Vessel Code.' The record is a company's statement about a test it witnessed. A new employer generally qualifies you again. The AWS Certified Welder credential is the piece built to travel, because AWS holds the record and anyone can check the number against the national registry.
Who is allowed to sign the AWS maintenance of certification form?
Four categories, and the form asks the signer to circle one: Employer, Supervisor, Customer, or Accredited Test Facility. The line above it states what the signature means, which is that 'the above-named welder used the welding process(es) on the dates indicated.' You enter the date you last used each process, and that date must fall within the 6 months before your certification expiration date. Those details come from the Maintenance of Welder Certification Form dated January 1, 2023.
Is there a state license for welders?
In most states there is no welding license at all, which is why this trade behaves so differently from electrical or plumbing. New York City is the well-known exception. Administrative Code section 28-407.1 makes it 'unlawful to perform manual welding work on any structural member of any building in the city' without a Department of Buildings welder license, and DOB will not issue one until you produce an AWS or New York State DOT certification card. Section 28-407.3 then makes evidence of fitness to perform the work a condition of renewal and reinstatement.