Requires: ABET-accredited engineering degree, FE exam pass, typically ~4 years of progressive experience; state boards set exact rules
Renewal: State-dependent; typically biennial renewal with continuing-education/PDH requirements
26 records · 5 briefs · 4 study guides
Mechanical credentials, codes & rules.
What you must hold to practice, what employers ask for, which codes you design to, and which regulators can stop a launch — with the prerequisites, renewal cycle and issuing body for each.
3Licenses to practice
12Certifications
7Standards
7Regulations
Read in depth
Study guides & compliance briefs.
Study guide · 13 min
EPA Section 608 Technician Certification — Study Guide
Credential: EPA Section 608 Technician Certification Issuing body: US Environmental Protection Agency (exams administered by EPA-approved certifying organizations) Jurisd…
Read → Study guide · 12 min Mechanical Engineering — Good-to-Know Rules of ThumbDiscipline: Mechanical Scope: standard-practice and niche credentials, standards/regulations mastery, field rules of thumb, and veteran knowledge that exams don't test. -…
Read → Study guide · 2 min Mechanical Engineering — Study GuidesCredential landscape Mechanical is a license-mandatory discipline in the United States : you cannot legally stamp or seal designs, offer engineering services to the publi…
Read → Study guide · 11 min State HVAC/Mechanical Contractor Licensing — Study GuideCredential: State HVAC/Mechanical Contractor License Issuing body: State licensing boards / departments of labor (varies by state) Jurisdiction: United States — state-by-…
Read → Compliance brief · 4 min AIM Act HFC Phasedown (American Innovation and Manufacturing Act of 2020) — Compliance BriefRecord covered: mechanical-reg-006 Issuing body: US Congress (statute, enacted 27 December 2020 as part of the Consolidated Appropriations Act); implementation and enforc…
Read → Compliance brief · 4 min ASME Boiler and Pressure Vessel Code (BPVC) — Compliance BriefRecord covered: mechanical-std-001 Issuing body: American Society of Mechanical Engineers (ASME) — Boiler and Pressure Vessel Committee. Jurisdiction: United States origi…
Read → Compliance brief · 5 min OSHA 29 CFR 1910 Subpart O — Machinery and Machine Guarding (incl. 1910.212) — Compliance BriefRecords covered: mechanical-reg-001 · manufacturing-reg-001 Merge note: these two records describe the same federal rule from two discipline angles — Subpart O is the sec…
Read → Compliance brief · 4 min US State Boiler and Pressure-Vessel Inspection Laws — Compliance BriefRecord covered: mechanical-reg-005 Issuing body / enforcer: Individual state agencies (e.g. Illinois Office of the State Fire Marshal, Pennsylvania Department of Labor & …
Read → Compliance brief · 4 min State HVAC / Mechanical Contractor Licensing — Compliance BriefRecord covered: mechanical-cert-013 Issuing body: State licensing boards / departments of labor (varies — e.g. California Contractors State License Board C-20 classificat…
Read →Requires: Enrollment in or graduation from ABET-accredited engineering program (state rules vary)
Renewal: Does not expire; Engineer Intern designation may lapse in some states
Requires: Accredited MEng, or BEng (Hons) + Masters/further learning; documented initial professional development plus a written application, competence statements, sponsors, and professional-review interview
Renewal: Maintained through IMechE membership and CPD; not a fixed-cycle re-exam
Requires: Minimum 7 years total formation: high-level secondary education (B) + at least 3 years university-level engineering education (U) + at least 2 years assessed professional experience (E); in the UK typically requires existing CEng
Renewal: Title held for life once awarded
Requires: CEAB-accredited degree (or equivalent assessment), qualifying engineering experience (PEO reduced minimum from 48 to 24 months effective July 2026; other provinces vary), National Professional Practice Examination, good character
Renewal: Annual license renewal via the provincial regulator; CPD requirements vary by province
Requires: EA member at Member level+, Washington-Accord-equivalent 4-year degree, minimum 5 years relevant experience, demonstration of 16 Stage-2 competency elements via self-assessment/industry review/interview
Renewal: Maintained while EA member with 150 hours CPD over 3 years and audit compliance
Requires: Pass the closed-book exam (150 questions, 4 hours); no experience requirement
Renewal: 3 years; recertification via PDH/retest pathway
Requires: Pass the closed-book exam (150 questions, 6 hours); experience requirement applies — 36 months per the 2018 candidate handbook per certcrafter, though legacy ASME materials cited 5 years
Renewal: 3 years
Requires: Minimum 5 years qualified welding-fabrication/inspection experience (up to 2 years substitutable with relevant education); pass 3-part exam (fundamentals, practical, code book — 72% minimum)
Renewal: 9-year certification cycle; renewal applications at years 3 and 6 by work experience, exam, or PDH; 9-year recertificati
Requires: Varies by program (education + years of relevant HVAC&R experience combinations); ASHRAE membership not required
Renewal: 3-year cycle with CPD/PDH requirements (program-dependent)
Requires: Pass Core exam + at least one specialty exam; experience-based testing
Renewal: Every 2 years via 16 continuing-education hours or specialty re-exam
Requires: Pass EPA-approved proctored test for the relevant type; Universal requires proctored Core + all three types
Renewal: Does not expire (lifetime credential)
Requires: Typically years of journeyman experience + trade exam + insurance/bonding; exact mix varies by state
Renewal: State-dependent (commonly 1-3 years)
Renewal: New edition every 2 years (odd years; e.g. 2021, 2023, 2025)
Renewal: Periodic editions/addenda
Renewal: Periodic editions/addenda
Renewal: Current edition Y14.5-2018, reaffirmed 2024
Renewal: Periodic editions
Renewal: Periodic editions (12th ed. current in industry use)
Renewal: Certificate valid 3 years with annual surveillance audits; current edition ISO 9001:2015
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