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        "title": "Stage electrical safeguards before maintenance begins",
        "summary": "Use 29 CFR 1910.335 - Safeguards for personnel protection to review this narrow operational decision without extending the source beyond its stated scope.",
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        "potentially_affected": "Teams, systems, services, or facilities within the stated scope of 29 CFR 1910.335 - Safeguards for personnel protection",
        "dse_recommendation": "Compare the observed state with the cited official source, document applicability and exceptions, and test any approved change with rollback safeguards.",
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            "name": "29 CFR 1910.335 - Safeguards for personnel protection",
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        "content_html": "<p>Keep this document to one review outcome: Stage electrical safeguards before maintenance begins. Only the official source and traced locations below supply facts. Confirm applicability before acting.</p>\n<h2>Source fact:</h2>\n<p>The official <a href=\"https://www.ecfr.gov/current/title-29/section-1910.335\" target=\"_blank\" rel=\"noopener noreferrer\">29 CFR 1910.335 &#8211; Safeguards for personnel protection</a> from Occupational Safety and Health Administration via eCFR supports the following bounded statements:</p>\n<ul>\n<li>Under 29 CFR 1910, the rule requires that protective shields, protective barriers, or insulating materials be used to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. The research record locates this support at <strong>29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii))</strong>.</li>\n<li>Under 29 CFR 1910, the rule requires that if signs and barricades do not provide sufficient warning and protection from electrical hazards, an attendant be stationed to warn and protect employees. The research record locates this support at <strong>29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3))</strong>.</li>\n</ul>\n<p>These statements are the factual basis for this document. Do not extend them into a broader assurance. Review critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths only where the source and recorded environment align.</p>\n<h2>What the source does not establish</h2>\n<p>Federal workplace rule; hazard analysis, equipment ratings, inspection, training, and other electrical standards determine the safeguards for a task. A correct source interpretation can still be inapplicable to a particular design. Confirm identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders, ownership, and change authority instead of treating documented behavior as a deployment guarantee.</p>\n<h2>Applicability questions</h2>\n<ul>\n<li>For source statement 1 at <strong>29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii))</strong>, which observable configuration, record, or test can confirm applicability here?</li>\n<li>For source statement 2 at <strong>29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3))</strong>, which observable configuration, record, or test can confirm applicability here?</li>\n<li>Which deployed instance of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths will be compared with the source, and why that instance?</li>\n<li>How will the review distinguish a source mismatch from a failure in identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders?</li>\n<li>Who approves the conclusion, exception, test window, and rollback threshold?</li>\n</ul>\n<h2>DSE recommendation:</h2>\n<p>DSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. Record the source location, examined part of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths, observed and expected states, owner, and reason for deviation.</p>\n<p>An implementation decision needs an owner, approved window, prechecks, observable outcome, stop authority, and rollback path. Validate identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders before and after the test, and store only sanitized operational evidence.</p>\n<h2>Verification and evidence</h2>\n<p>Keep the source locations <strong>29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii))</strong>; <strong>29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3))</strong> adjacent to the sanitized artifacts used for comparison. Prefer facility inventories, inspection records, alarm and shutdown tests, maintenance history, recovery exercises, and corrective actions, with enough identity and timing data for an independent recheck.</p>\n<p>Keep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.</p>\n<h2>Official references</h2>\n<ul>\n<li><a href=\"https://www.ecfr.gov/current/title-29/section-1910.335\" target=\"_blank\" rel=\"noopener noreferrer\">29 CFR 1910.335 &#8211; Safeguards for personnel protection</a> — Occupational Safety and Health Administration via eCFR</li>\n</ul>",
        "content_text": "Keep this document to one review outcome: Stage electrical safeguards before maintenance begins. Only the official source and traced locations below supply facts. Confirm applicability before acting.\nSource fact:\nThe official 29 CFR 1910.335 – Safeguards for personnel protection from Occupational Safety and Health Administration via eCFR supports the following bounded statements:\n\nUnder 29 CFR 1910, the rule requires that protective shields, protective barriers, or insulating materials be used to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. The research record locates this support at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)).\nUnder 29 CFR 1910, the rule requires that if signs and barricades do not provide sufficient warning and protection from electrical hazards, an attendant be stationed to warn and protect employees. The research record locates this support at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)).\n\nThese statements are the factual basis for this document. Do not extend them into a broader assurance. Review critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths only where the source and recorded environment align.\nWhat the source does not establish\nFederal workplace rule; hazard analysis, equipment ratings, inspection, training, and other electrical standards determine the safeguards for a task. A correct source interpretation can still be inapplicable to a particular design. Confirm identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders, ownership, and change authority instead of treating documented behavior as a deployment guarantee.\nApplicability questions\n\nFor source statement 1 at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)), which observable configuration, record, or test can confirm applicability here?\nFor source statement 2 at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)), which observable configuration, record, or test can confirm applicability here?\nWhich deployed instance of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths will be compared with the source, and why that instance?\nHow will the review distinguish a source mismatch from a failure in identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders?\nWho approves the conclusion, exception, test window, and rollback threshold?\n\nDSE recommendation:\nDSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. Record the source location, examined part of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths, observed and expected states, owner, and reason for deviation.\nAn implementation decision needs an owner, approved window, prechecks, observable outcome, stop authority, and rollback path. Validate identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders before and after the test, and store only sanitized operational evidence.\nVerification and evidence\nKeep the source locations 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)); 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)) adjacent to the sanitized artifacts used for comparison. Prefer facility inventories, inspection records, alarm and shutdown tests, maintenance history, recovery exercises, and corrective actions, with enough identity and timing data for an independent recheck.\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.\nOfficial references\n\n29 CFR 1910.335 – Safeguards for personnel protection — Occupational Safety and Health Administration via eCFR",
        "content_markdown": "Keep this document to one review outcome: Stage electrical safeguards before maintenance begins. Only the official source and traced locations below supply facts. Confirm applicability before acting.\n\n## Source fact:\n\nThe official [29 CFR 1910.335 – Safeguards for personnel protection](https://www.ecfr.gov/current/title-29/section-1910.335) from Occupational Safety and Health Administration via eCFR supports the following bounded statements:\n\n- Under 29 CFR 1910, the rule requires that protective shields, protective barriers, or insulating materials be used to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. The research record locates this support at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)).\n\n- Under 29 CFR 1910, the rule requires that if signs and barricades do not provide sufficient warning and protection from electrical hazards, an attendant be stationed to warn and protect employees. The research record locates this support at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)).\n\nThese statements are the factual basis for this document. Do not extend them into a broader assurance. Review critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths only where the source and recorded environment align.\n\n## What the source does not establish\n\nFederal workplace rule; hazard analysis, equipment ratings, inspection, training, and other electrical standards determine the safeguards for a task. A correct source interpretation can still be inapplicable to a particular design. Confirm identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders, ownership, and change authority instead of treating documented behavior as a deployment guarantee.\n\n## Applicability questions\n\n- For source statement 1 at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)), which observable configuration, record, or test can confirm applicability here?\n\n- For source statement 2 at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)), which observable configuration, record, or test can confirm applicability here?\n\n- Which deployed instance of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths will be compared with the source, and why that instance?\n\n- How will the review distinguish a source mismatch from a failure in identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders?\n\n- Who approves the conclusion, exception, test window, and rollback threshold?\n\n## DSE recommendation:\n\nDSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. Record the source location, examined part of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths, observed and expected states, owner, and reason for deviation.\n\nAn implementation decision needs an owner, approved window, prechecks, observable outcome, stop authority, and rollback path. Validate identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders before and after the test, and store only sanitized operational evidence.\n\n## Verification and evidence\n\nKeep the source locations 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)); 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)) adjacent to the sanitized artifacts used for comparison. Prefer facility inventories, inspection records, alarm and shutdown tests, maintenance history, recovery exercises, and corrective actions, with enough identity and timing data for an independent recheck.\n\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.\n\n## Official references\n\n- [29 CFR 1910.335 – Safeguards for personnel protection](https://www.ecfr.gov/current/title-29/section-1910.335) — Occupational Safety and Health Administration via eCFR"
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                "description": "Use 29 CFR 1910.335 - Safeguards for personnel protection to review this narrow operational decision without extending the source beyond its stated scope.",
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                "articleBody": "Keep this document to one review outcome: Stage electrical safeguards before maintenance begins. Only the official source and traced locations below supply facts. Confirm applicability before acting.\nSource fact:\nThe official 29 CFR 1910.335 – Safeguards for personnel protection from Occupational Safety and Health Administration via eCFR supports the following bounded statements:\n\nUnder 29 CFR 1910, the rule requires that protective shields, protective barriers, or insulating materials be used to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. The research record locates this support at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)).\nUnder 29 CFR 1910, the rule requires that if signs and barricades do not provide sufficient warning and protection from electrical hazards, an attendant be stationed to warn and protect employees. The research record locates this support at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)).\n\nThese statements are the factual basis for this document. Do not extend them into a broader assurance. Review critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths only where the source and recorded environment align.\nWhat the source does not establish\nFederal workplace rule; hazard analysis, equipment ratings, inspection, training, and other electrical standards determine the safeguards for a task. A correct source interpretation can still be inapplicable to a particular design. Confirm identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders, ownership, and change authority instead of treating documented behavior as a deployment guarantee.\nApplicability questions\n\nFor source statement 1 at 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)), which observable configuration, record, or test can confirm applicability here?\nFor source statement 2 at 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)), which observable configuration, record, or test can confirm applicability here?\nWhich deployed instance of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths will be compared with the source, and why that instance?\nHow will the review distinguish a source mismatch from a failure in identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders?\nWho approves the conclusion, exception, test window, and rollback threshold?\n\nDSE recommendation:\nDSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. Record the source location, examined part of critical rooms, power, cooling, water, fire protection, alternate sites, physical barriers, and documented recovery paths, observed and expected states, owner, and reason for deviation.\nAn implementation decision needs an owner, approved window, prechecks, observable outcome, stop authority, and rollback path. Validate identity and access control, Windows DNS where networked services use it, time, communications, utilities, life-safety systems, vendors, and authorized responders before and after the test, and store only sanitized operational evidence.\nVerification and evidence\nKeep the source locations 29 CFR 1910.335(a)(2)(ii) (eCFR anchor p-1910.335(a)(2)(ii)); 29 CFR 1910.335(b)(3) (eCFR anchor p-1910.335(b)(3)) adjacent to the sanitized artifacts used for comparison. Prefer facility inventories, inspection records, alarm and shutdown tests, maintenance history, recovery exercises, and corrective actions, with enough identity and timing data for an independent recheck.\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.\nOfficial references\n\n29 CFR 1910.335 – Safeguards for personnel protection — Occupational Safety and Health Administration via eCFR",
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