Every significant change this cycle — article by article, with the program updates each one requires.
Read the guide →De-energize or justify? Walk it block by block — 43 verified 2027 citations. Free, no sign-up.
Walk the decision →Live, instructor-led by Rick Hauf, CSP — see current dates and pricing.
See open seats →70E, OSHA 1910/1926 & the NEC applied to 2N topology, live white space, and facilities that never go down.
Visit MCS ↗Practical guides written by Certified Safety Professionals — covering arc flash PPE requirements, 2027 NFPA 70E changes, training compliance, and electrical safety best practices.
The 2027 edition changes who must be retrained and on what clock, what you have to document, and what an auditor will ask for. A training-program read of the new edition, not a clause-by-clause summary.
Read Article800VDC is arriving in data halls faster than the guidance is. What 2027 NFPA 70E actually requires for DC power: PPE selection, verifying de-energization, labels, and what triggers a new arc flash study.
Read ArticleEveryone trains the AC side. The 2027 NFPA 70E has a DC PPE table, sub-50V coverage, and battery tasks by name — training should match your DC estate.
Read ArticleTraining alone doesn't make a qualified electrical worker. What 2027 NFPA 70E qualification really requires: demonstration, documentation, retraining.
Read ArticleWhy your electrical license isn't the same as qualified-person status, what a crew needs before energized work, and how the 3-year retraining clock actually works — on the 2027 edition.
Read ArticleThere is no NFPA-issued arc flash instructor certification. What an in-house 70E instructor actually needs: the qualification basis, the documentation the standard requires, and the materials that hold up.
Read ArticleAn instructor's honest look at when in-house train-the-trainer programs succeed, when they fail, and how the 2027 edition raises the bar for keeping one current.
Read ArticleThe 2027 edition's additional-person rule means someone on your team needs specific training to stand by for permitted work. Here's who qualifies, why you likely need more than one person, and a staffing checklist.
Read ArticleWho needs 2027 NFPA 70E training, the three-year retraining ceiling and its four exceptions, the three review clocks programs mix up, and where OSHA actually fits — on the current 2027 edition.
Read ArticleAn instructor’s honest checklist: the curriculum blocks, the 2027-edition content, and the format decisions that separate a real class from a certificate mill.
Read ArticleIs 2027 NFPA 70E the law? Not exactly — and “it isn’t a regulation” is not a defense. How OSHA and 2027 NFPA 70E fit together under the 2027 edition, and why the current edition is what you’re measured against.
Read ArticleA subtle protective-device setting change can dramatically increase arc flash incident energy without touching any hardware — silently invalidating your labels. Why an effective management-of-change process is critical under 2027 NFPA 70E.
Read ArticleWho needs 2027 NFPA 70E training, what “qualified” actually means, how often retraining is due (and what resets the clock early), and what a robust 2027-edition course actually covers.
Read ArticleNot all “online 2027 NFPA 70E training” is the same. Here’s the real difference between live-instructor and self-paced formats, and which one actually holds up for people who do energized work.
Read ArticleEnergized work is the operating default in a data hall. From the new second-person requirement to emergency response plans, pre-job briefings, MOC, and dry runs — a deep dive on what 2027 NFPA 70E actually changes for mission-critical facilities.
Read ArticleA current transformer secondary can read zero volts and still kill. 2027 NFPA 70E now recognizes circuits where absence-of-voltage testing alone isn’t enough — here’s the physics, the new verification language, and the field practice that matches it.
Read ArticleStandard lockout/tagout assumes you can fully de-energize a circuit. Solar PV systems break that assumption — the modules keep producing voltage as long as light hits them. Here’s what qualified workers need to know.
Read ArticleA compliant arc flash study needs five non-negotiable elements: risk assessment, IEEE 1584 calculations, field labels, qualified personnel, and a review cycle. Here's what 2027 NFPA 70E and OSHA require.
Read ArticleArc flash training is legally required under OSHA 29 CFR 1910.332/1910.335 and NFPA 70E for every worker exposed to electrical hazards. Here's who needs it, what it must cover, and how to build an audit-ready program.
Read ArticleA competent person is your on-site hazard-recognition and stop-work authority. A qualified person holds the technical credentials to perform energized electrical work. Here's how 2027 NFPA 70E and OSHA define, document, and separate the two.
Read ArticleCommission an arc-flash study, verify your LOTO program covers every energy source, and get qualified persons through documented 2027 NFPA 70E training. Here's the complete playbook for data center electrical safety.
Read ArticleEvery arc flash label on non-dwelling electrical equipment must carry four specific data elements under the 2026 NEC and NFPA 70E Section 130.5(H). Get any one wrong and the label is non-compliant.
Read ArticleAn arc flash risk assessment identifies electrical hazards, estimates incident energy, and determines the PPE workers need before approaching energized equipment. Here's how 2027 NFPA 70E and IEEE 1584 govern the process.
Read ArticleThe arc flash boundary is the distance at which incident energy reaches 1.2 cal/cm², the threshold for a second-degree burn. Here's how it's calculated, why it varies so widely, and what controls apply when you must work inside it.
Read ArticleElectrical LOTO is the procedure for physically securing every energy source before service or maintenance begins. Here's how OSHA 29 CFR 1910.147/1910.333 and NFPA 70E govern it, and the nine-step field sequence that keeps workers alive.
Read ArticleOur Certified Safety Professionals deliver custom onsite and virtual 2027 NFPA 70E training nationwide. We respond to every inquiry within 24 hours.
