What is the 6-month continuity rule for welder qualification?

Per AWS D1.1 Clause 4.25, a welder qualification remains valid indefinitely as long as the welder uses the qualified welding process at least once every six months and the employer documents each instance in a continuity log. A gap of more than six months without using the qualified process voids the qualification and requires retesting to restore compliance.

What counts as maintaining continuity under AWS D1.1?

Any production weld using the qualified process counts toward continuity — it does not need to be a test weld or the same position as the original qualification. A welder qualified in SMAW who runs SMAW production welds at least once every six months maintains continuity, regardless of position or project type, as long as the employer documents each use in the continuity log.

Can a welder transfer their D1.1 qualification to a new employer?

Yes. A D1.1 welder qualification is not employer-specific. A new employer can accept an existing WPQ provided the WPS used for the original test is equivalent to the new employer's WPS, continuity has been maintained without a six-month gap, and the qualification has not been revoked. The new employer takes over responsibility for the continuity log. If continuity lapsed or records are missing, retesting is the cleanest solution.

What happens if a welder's D1.1 qualification lapses?

If a welder's D1.1 qualification lapses due to a six-month continuity break, the WPQ becomes invalid. The welder must pass a new qualification test — same plate prep, same CWI inspection, same pass/fail criteria as the original test — before returning to D1.1 structural welding work. There is no grace period or abbreviated retest path under D1.1.

Can I mail in plates for welder re-certification?

Yes. AWS D1.1 does not require the CWI to witness welding for re-certification any more than for initial qualification. Your welder completes the test plate under a qualified WPS at your facility, ships it to WeldCertTest, and our AWS CWI performs visual inspection followed by accredited bend testing. Official WPQ documentation is issued on passing.

What should a welder continuity log contain?

A welder continuity log should document the welder name, welding process used, date of use, project or job number, and supervisor or employer signature for each entry. It must clearly demonstrate that the qualified process was used within the past six months. The log does not need to be complex — a simple spreadsheet or form maintained in the welder's qualification file is sufficient.

Welder Re-Certification | Lapsed AWS D1.1 Qualification

Q: When does an AWS D1.1 welder qualification expire?

An AWS D1.1 welder qualification does not expire on a calendar date. Per D1.1 Clause 4.25, it expires when the welder has not used the qualified welding process for more than six consecutive months. Both conditions must be met for continued validity: the welder must have used the process within six months, and the employer must have documented it in a continuity log.

Q: Is the re-certification test different from the initial qualification test?

No. Re-certification under AWS D1.1 uses the same test as initial qualification — same joint configuration, same plate thickness, same CWI visual inspection, same bend test criteria. There is no abbreviated retest or shortcut path. The welder must demonstrate the same proficiency as required for initial qualification.

How AWS D1.1 Welder Qualification Continuity Works

AWS D1.1 welder qualifications do not expire on a calendar date. Per Clause 4.25, a qualification remains valid indefinitely — but only when two conditions are continuously met: the welder must use the qualified welding process at least once every six months, and the employer must document each use in a continuity log. Both conditions. Not one or the other.

When the six-month window passes without documented use of the qualified process, the WPQ becomes invalid. The welder cannot legally weld on D1.1 structural steel projects until they pass a new qualification test. There is no grace period, no reduced-scope retest, and no paperwork shortcut that restores a lapsed qualification. A new plate, a new inspection, and a new WPQ are required.

⚠ Lapsed Qualification = Immediate Non-Compliance: A welder who continues to weld on D1.1 projects after their qualification has lapsed creates a non-conformance issue for the entire project. QC audits, CWI inspections, and project closeout documentation checks all reveal this. The fastest path to resolution is re-qualification — not paperwork.

The 6-Month Rule — In Detail

The six-month continuity requirement is per process, per welder. A welder qualified in multiple processes must maintain continuity on each process independently. The most common trap: a welder qualified in both SMAW and FCAW spends a full year running exclusively SMAW production welds. Their SMAW qualification is current. Their FCAW qualification has lapsed — even though they welded every single day.

D1.1 Clause 4.25: "A welder's or welding operator's qualification shall remain in effect indefinitely unless (1) the welder or welding operator 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 the welder's or welding operator's ability."

What Counts Toward Continuity — and What Doesn't
Activity	Counts?	Notes
Production weld using qualified process	Yes	Any position, any project
Practice weld using qualified process	Yes	If documented by employer
Tack welds using qualified process	Yes	If documented — check with CWI
Welding with a different process	No	Continuity is per process
Welding for a different employer	No*	*Unless new employer accepts prior log
Being employed but not welding	No	Employment alone doesn't count
Training or classroom instruction	No	Must be actual welding with the process

Common Re-Certification Scenarios

Continuity Lapse — Layoff or Injury

The most common scenario. Welder was laid off, injured, on extended leave, or simply wasn't assigned work requiring the qualified process. Six months passed. The WPQ is void. Solution: new plate, new test, new WPQ. The welder's skill is usually still there — they just need to demonstrate it again.

New Employer Requirement

Many companies require welders to re-qualify under their own supervision even when the welder holds a valid WPQ from a previous employer. Whether required by contract, company QC program, or project specification — a fresh qualification under the new employer's WPS satisfies the requirement cleanly.

Lost or Missing WPQ Records

No WPQ documentation means no proof of qualification regardless of how long or how well the welder has been welding. Audits, project closeouts, and compliance checks all require physical WPQ records. Re-qualification is faster and cleaner than attempting to reconstruct lost documentation.

CWI Revocation or Specific Cause

Per D1.1 Clause 4.25(2), a CWI can revoke a welder's qualification if there is specific reason to question their ability — weld quality issues, observed technique problems, or failed production weld inspection. Re-qualification on a fresh test plate resolves the question with documented evidence.

Process Change

Welder holds SMAW qualification but the new project requires FCAW. Different process = separate qualification required. The existing SMAW WPQ doesn't transfer to FCAW production work regardless of skill level. A new FCAW test plate is required.

Audit or Project Compliance Finding

QC audit revealed missing continuity log entries, expired qualifications, or documentation gaps. The fastest path to compliance is re-qualification — new plates, new WPQs, clean documentation from this point forward. We work with QC managers and owners to prioritize and sequence multiple welders efficiently.

Welder Performance Qualification Record document on wooden desk with hard hat and welding gloves, showing fields for welder name, process, position, test date, and CWI signature — **The WPQ record — what re-certification produces:** A fresh CWI-signed Welder Performance Qualification record with a new issue date, positions covered, process, and thickness range. This is the document that satisfies QC audits, project specs, and employer compliance requirements.

Re-Certification Is the Same Test as Initial Qualification

There is no abbreviated path under AWS D1.1 for re-certification. The test is identical to the original qualification — same joint configuration, same plate preparation, same CWI visual inspection criteria, same bend test requirements. The only difference is that the WPQ will carry a new issue date reflecting the re-qualification.

✓ Experienced Welders Usually Pass Quickly: A welder who has been welding regularly on another process typically has the underlying skill. The test is a demonstration, not a learning exercise. Most continuity-lapse re-qualifications are straightforward — the welder needs a warm-up session on the process and then runs the plate. The skill does not disappear in six months.

Re-Certification Test Requirements — Same as Initial Qualification
Item	Initial Qualification	Re-Certification
Joint Configuration	Per D1.1 WPS	Same
Plate/Pipe Thickness	Per qualification range	Same
Visual Inspection	D1.1 Clause 4.9	Same criteria
Bend Testing	4 specimens, 180°	Same
CWI Signature	Required	Required
WPS Required	Yes	Yes
Abbreviated Retest Path	N/A	None available

Choosing the Right Re-Certification Test

Re-certification is an opportunity to upgrade coverage. If a welder is retesting because their 1G lapsed, consider qualifying the 3G instead — same number of plates, broader coverage, and the welder won't need to retest again when vertical work comes up. Use the forced retest as a chance to come back with a stronger qualification.

Re-Certification Test Options — Maximize Coverage
Test	Flat	Horiz.	Vertical	Overhead	Plates
1G Flat	✓	✗	✗	✗	1
2G Horizontal	✓	✓	✗	✗	1
3G Vertical	✓	✓	✓	✗	1
3G/4G All-Position	✓	✓	✓	✓	2
5G Pipe	✓	✗	✓	✓	1 coupon
6G Pipe	✓	✓	✓	✓	1 coupon

How to Prevent Future Lapses — The Continuity Log

A continuity log is not complicated. It is a running record that the welder used the qualified process within the past six months. It does not need to be a formal document — a spreadsheet, a notebook, or a simple form maintained in the welder's file is sufficient. The requirement is documentation, not format.

Sample Continuity Log — Minimum Required Fields
Date	Welder Name	Process	Project / Job No.	Supervisor Signature
01/15/2025	J. Smith	SMAW	Bridge Proj. 2025-04	R. Johnson
03/22/2025	J. Smith	SMAW	Fabrication Shop Run	R. Johnson
06/10/2025	J. Smith	SMAW	Plant Expansion 7B	R. Johnson
09/05/2025	J. Smith	SMAW	Maintenance Contract	R. Johnson

Start the log on the day the WPQ is received — not after the first production weld
Log every qualifying use of the process — don't wait until the five-month mark
Set a calendar reminder at 5 months — one month buffer before expiration
Keep the log in the welder's permanent qualification file alongside the WPQ
When a welder changes employers, confirm the new employer will accept the existing log or start fresh
Review all welders' logs quarterly — a missed entry discovered late is better than one discovered never
Multiple processes require separate log entries for each process

✓ Free Prevention: A continuity log costs nothing to maintain and prevents a re-qualification test that costs time and money. Every dollar spent on re-certification testing is a dollar that a properly maintained continuity log would have saved.

Multiple Welder Re-Certification Programs

For fabrication shops, contractors, and industrial employers with multiple welders needing re-certification simultaneously, we can sequence and process multiple test plates efficiently. Tell us how many welders, which positions, and which processes — we'll provide a consolidated quote and work through them in order of priority.

QC Managers: If you're dealing with an audit finding or compliance gap on multiple welders, call us directly at (404) 860-1288. We've worked with QC teams to prioritize critical welders and get documentation back in order quickly. A consolidated approach is faster and more cost-effective than processing welders one at a time.

Mail-In Re-Certification — How It Works

Contact us — tell us the situation

Process, last qualified position, reason for re-certification, number of welders. We'll confirm the test required, provide a WPS, and quote pricing. We've seen every scenario — call or use the quote form.
Welder preps and runs the plate

Same plate prep as initial qualification. Welder runs the test under the WPS at your facility. A warm-up session on scrap material before running the test plate is a good idea for welders returning after a long gap.
Ship the plate

Follow our shipping instructions. Standard ground shipping. Include welder name, process, position, and contact info with the shipment.
CWI visual inspection

Our AWS CWI performs full visual inspection per D1.1 Clause 4.9. We contact you on any visual rejection before proceeding to bend testing.
Accredited bend testing

Specimens cut, prepared, and bent per D1.1 at our accredited lab. Full documentation maintained.
New WPQ issued with current date

Fresh CWI-signed WPQ with new issue date delivered by email and mail. Start the continuity log immediately on receipt. See timeframes for current turnaround.

Glossary

Continuity

The documented record showing a welder has used the qualified welding process at least once every six months. Required by D1.1 Clause 4.25 to maintain qualification validity.

Continuity Log

Employer-maintained record documenting each qualifying use of the welding process. Must include date, welder name, process, project reference, and supervisor signature at minimum.

WPQ Record

Welder Performance Qualification record — the official CWI-signed document certifying the welder passed the qualification test. The primary compliance document for D1.1 structural welding work.

Lapsed Qualification

A welder qualification that has become invalid due to a six-month gap without documented use of the qualified process. Requires a new qualification test to restore — no paperwork shortcut exists.

D1.1 Clause 4.25

The AWS D1.1 provision governing welder qualification continuity. Specifies that qualification is valid indefinitely unless the welder has not used the qualified process for more than six months or there is specific reason to question their ability.

Essential Variable

A change in welding conditions significant enough to require re-qualification under D1.1 Table 6.12. Includes changes in welding process, F-number group, base metal P-number group, and other factors. Continuity lapse is the most common cause of required re-qualification.

Frequently Asked Questions

When does an AWS D1.1 welder qualification expire?

A D1.1 welder qualification does not have a calendar expiration date. It expires when the welder has not used the qualified welding process for more than six consecutive months, or when a CWI has specific reason to revoke it. Both the six-month use requirement and employer documentation must be maintained continuously for the qualification to remain valid.

What exactly is the 6-month continuity rule?

Per D1.1 Clause 4.25, the qualification stays valid as long as the welder uses the qualified process at least once every six months AND the employer documents it. The key traps: continuity is per process (not per welder), and documentation must exist — a welder who welded regularly but wasn't logged is in the same position as one who didn't weld at all.

Is re-certification testing different from initial qualification?

No. D1.1 re-certification uses the same test as initial qualification — same joint, same plate prep, same CWI visual inspection, same bend test criteria. There is no abbreviated path. The resulting WPQ will have a new issue date reflecting the re-qualification date.

Can a welder transfer a qualification to a new employer?

Yes, with conditions. The new employer must accept the existing WPS as equivalent to their own, continuity must have been maintained without a six-month gap, and the qualification must not have been revoked. The new employer takes responsibility for the continuity log going forward. Many employers simply require a fresh re-qualification — it resolves all questions cleanly.

What if we lost the WPQ records?

Without WPQ documentation there is no proof of qualification — regardless of how long or how well the welder has been welding. Re-qualification is the fastest path to documented compliance. There is no procedure under D1.1 for reconstructing or replacing lost WPQ records after the fact.

Does welding with a different process count toward continuity?

No. Continuity is per process. A welder qualified in both SMAW and FCAW who spends six months running only SMAW has maintained SMAW continuity and lost FCAW continuity — even though they welded every day. Each qualified process requires its own documented use within the six-month window.

Can we re-qualify multiple welders at once?

Yes. We work with fabrication shops and contractors managing multiple welder re-qualifications regularly. Call us at (404) 860-1288 to discuss the number of welders, positions, and processes. We can sequence and prioritize efficiently and provide consolidated documentation.

Should I re-qualify to the same position or upgrade?

Re-certification is a good opportunity to upgrade. If the welder is retesting anyway, qualifying the 3G instead of the 1G costs the same number of plates and provides broader coverage. The 3G/4G combined covers all four positions in two plates. Consider what production work is coming up and qualify accordingly — use the forced retest to come back stronger.

How do we prevent qualification lapses going forward?

Start a continuity log on the day the WPQ is received. Log every qualifying use of the process with date, welder name, process, project number, and supervisor signature. Set a calendar reminder at the five-month mark for each welder. Review all logs quarterly. A properly maintained continuity log costs nothing and prevents every future re-certification test that results from a continuity lapse.

Can a CWI revoke a qualification without a continuity lapse?

Yes. Per D1.1 Clause 4.25(2), a CWI can revoke a qualification if there is specific reason to question the welder's ability — failed production weld inspections, observed technique problems, or documented quality issues. Re-qualification on a fresh test plate is the standard path to resolution in these cases.

Ready to Get Back in Compliance?

Tell us the process, position, and number of welders. We'll get you a quote and a WPS same day.

Mail-in service. CWI inspected. New WPQ issued with current date. Nationwide.

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Welder Re-Certification