datasets
Training and evaluation data, with the modality, task and licence stated up front. Listed live from the Hugging Face Hub.
iso-standard-supersessions
Withdrawn and superseded ISO standards
Canonical, always-current version: https://referencesource.org/iso-standard-supersessions/
Machine-readable: https://referencesource.org/iso-standard-supersessions/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-05
Stale after: 2027-02-02 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 24542
Every deliverable in ISO's own open-data register that has been… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/iso-standard-supersessions.state-civil-statute-of-limitations
Civil statute of limitations by state and type of claim
Canonical, always-current version: https://referencesource.org/state-civil-statute-of-limitations/
Machine-readable: https://referencesource.org/state-civil-statute-of-limitations/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-25
Stale after: 2027-08-25 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 238
How long do you have to sue? Every… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/state-civil-statute-of-limitations.neshap-source-category-crosswalk
EPA NESHAP Source Category Applicability Crosswalk
Canonical, always-current version: https://referencesource.org/neshap-source-category-crosswalk/
Machine-readable: https://referencesource.org/neshap-source-category-crosswalk/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-15
Stale after: 2026-12-13 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 125
Maps each EPA NESHAP source category to its… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/neshap-source-category-crosswalk.hazmat-segregation-matrix
Hazmat load segregation — which hazard classes may travel together, highway vs vessel
Canonical, always-current version: https://referencesource.org/hazmat-segregation-matrix/
Machine-readable: https://referencesource.org/hazmat-segregation-matrix/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-10
Stale after: 2027-08-10 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 788
The pairwise… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/hazmat-segregation-matrix.data-breach-notification-clocks
US state data breach notification deadlines by state
Canonical, always-current version: https://referencesource.org/data-breach-notification-clocks/
Machine-readable: https://referencesource.org/data-breach-notification-clocks/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-18
Stale after: 2027-02-14 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 18
US state-by-state data breach notification… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/data-breach-notification-clocks.process-compatibility-coatings-adhesives-treatments
Galvanic series and surface energy of engineering materials
Canonical, always-current version: https://referencesource.org/process-compatibility-coatings-adhesives-treatments/
Machine-readable: https://referencesource.org/process-compatibility-coatings-adhesives-treatments/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-04
Stale after: 2028-08-03 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 80… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/process-compatibility-coatings-adhesives-treatments.state-section-179-bonus-depreciation-conformity
State conformity to federal Section 179 and bonus depreciation rules
Canonical, always-current version: https://referencesource.org/state-section-179-bonus-depreciation-conformity/
Machine-readable: https://referencesource.org/state-section-179-bonus-depreciation-conformity/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-15
Stale after: 2027-08-15 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 51… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/state-section-179-bonus-depreciation-conformity.asbestos-notification-requirements-by-state
Asbestos Abatement Notification Requirements, Thresholds, and Fees by State
Canonical, always-current version: https://referencesource.org/asbestos-notification-requirements-by-state/
Machine-readable: https://referencesource.org/asbestos-notification-requirements-by-state/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-15
Stale after: 2027-08-15 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 7… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/asbestos-notification-requirements-by-state.voc-limits-architectural-coatings
VOC content limits for architectural coatings by jurisdiction
Canonical, always-current version: https://referencesource.org/voc-limits-architectural-coatings/
Machine-readable: https://referencesource.org/voc-limits-architectural-coatings/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-06
Stale after: 2027-08-06 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 222
Maximum volatile organic… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/voc-limits-architectural-coatings.superseded-standards-mappings
Superseded and deprecated identifier mappings
Canonical, always-current version: https://referencesource.org/superseded-standards-mappings/
Machine-readable: https://referencesource.org/superseded-standards-mappings/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-04
Stale after: 2027-01-31 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 141
Withdrawn standards, deprecated API models and retired… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/superseded-standards-mappings.veteran-property-tax-exemptions-by-state
State Property Tax Exemptions for Disabled Veterans — Exemption Amounts, Disability Rating Thresholds, and Eligibility Rules
Canonical, always-current version: https://referencesource.org/veteran-property-tax-exemptions-by-state/
Machine-readable: https://referencesource.org/veteran-property-tax-exemptions-by-state/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-18
Stale after: 2027-08-18 (past this date, prefer the canonical copy —
it re-verifies on a… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/veteran-property-tax-exemptions-by-state.chemical-elastomer-material-compatibility
Chemical resistance ratings for common elastomers
Canonical, always-current version: https://referencesource.org/chemical-elastomer-material-compatibility/
Machine-readable: https://referencesource.org/chemical-elastomer-material-compatibility/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-12
Stale after: 2028-08-11 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 2086
The compatibility rating of… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/chemical-elastomer-material-compatibility.router-firmware-support-status
Consumer router firmware support — end-of-life status and dates by vendor and model
Canonical, always-current version: https://referencesource.org/router-firmware-support-status/
Machine-readable: https://referencesource.org/router-firmware-support-status/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-11
Stale after: 2026-11-09 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 880
Per-model… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/router-firmware-support-status.chemical-regulatory-reporting-thresholds
US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)
Canonical, always-current version: https://referencesource.org/chemical-regulatory-reporting-thresholds/
Machine-readable: https://referencesource.org/chemical-regulatory-reporting-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-05
Stale after: 2027-08-05 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records:… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/chemical-regulatory-reporting-thresholds.dot-hazmat-placarding-thresholds
DOT hazmat placarding requirements by hazard class (any-quantity vs. 1,001 lb threshold)
Canonical, always-current version: https://referencesource.org/dot-hazmat-placarding-thresholds/
Machine-readable: https://referencesource.org/dot-hazmat-placarding-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-19
Stale after: 2027-02-15 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 23
A… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/dot-hazmat-placarding-thresholds.solar-inverter-panel-battery-compatibility
Solar inverter–battery compatibility
Canonical, always-current version: https://referencesource.org/solar-inverter-panel-battery-compatibility/
Machine-readable: https://referencesource.org/solar-inverter-panel-battery-compatibility/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-12
Stale after: 2027-02-08 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 101
Which lithium batteries have been… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/solar-inverter-panel-battery-compatibility.clean-air-act-major-source-thresholds
Clean Air Act "major source" emission thresholds by pollutant and area classification
Canonical, always-current version: https://referencesource.org/clean-air-act-major-source-thresholds/
Machine-readable: https://referencesource.org/clean-air-act-major-source-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-19
Stale after: 2027-02-15 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 13… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/clean-air-act-major-source-thresholds.osha-training-requirements-by-standard
OSHA training requirements by standard: topic, frequency, and CFR citation
Canonical, always-current version: https://referencesource.org/osha-training-requirements-by-standard/
Machine-readable: https://referencesource.org/osha-training-requirements-by-standard/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-05
Stale after: 2028-08-04 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 31
Which OSHA… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/osha-training-requirements-by-standard.building-permit-validity-and-renewal
Building permit expiry, progress and renewal rules by jurisdiction
Canonical, always-current version: https://referencesource.org/building-permit-validity-and-renewal/
Machine-readable: https://referencesource.org/building-permit-validity-and-renewal/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-11
Stale after: 2027-08-11 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 7
How long a building… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/building-permit-validity-and-renewal.elevator-inspection-requirements-by-state
How often elevators must be inspected in each US state: intervals, filing rules, fees and the ASME A17.1 edition enforced
Canonical, always-current version: https://referencesource.org/elevator-inspection-requirements-by-state/
Machine-readable: https://referencesource.org/elevator-inspection-requirements-by-state/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-11
Stale after: 2027-08-11 (past this date, prefer the canonical copy —
it re-verifies on a… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/elevator-inspection-requirements-by-state.energy-code-adoption-by-state
Which energy code each US state enforces for new homes: the IECC edition (or state equivalent) actually in force, with effective dates and amendments, from the state rules themselves
Canonical, always-current version: https://referencesource.org/energy-code-adoption-by-state/
Machine-readable: https://referencesource.org/energy-code-adoption-by-state/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-18
Stale after: 2027-02-14 (past this date, prefer the… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/energy-code-adoption-by-state.aircraft-inspection-and-test-intervals
Aircraft inspection and test intervals under 14 CFR Part 91
Canonical, always-current version: https://referencesource.org/aircraft-inspection-and-test-intervals/
Machine-readable: https://referencesource.org/aircraft-inspection-and-test-intervals/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-06
Stale after: 2028-08-05 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 13
How often each required… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/aircraft-inspection-and-test-intervals.esab-filler-metal-recommendations-by-astm-steel-grade
ESAB recommended filler metals and suggested preheat group, by ASTM steel grade
Canonical, always-current version: https://referencesource.org/esab-filler-metal-recommendations-by-astm-steel-grade/
Machine-readable: https://referencesource.org/esab-filler-metal-recommendations-by-astm-steel-grade/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-19
Stale after: 2028-08-18 (past this date, prefer the canonical copy —
it re-verifies on a cadence this… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/esab-filler-metal-recommendations-by-astm-steel-grade.nrtl-recognized-test-standards
Which OSHA-recognized labs (NRTLs) can certify to a given test standard
Canonical, always-current version: https://referencesource.org/nrtl-recognized-test-standards/
Machine-readable: https://referencesource.org/nrtl-recognized-test-standards/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-10
Stale after: 2026-11-08 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 4329
The inverted view of OSHA's… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/nrtl-recognized-test-standards.regulatory-threshold-triggers
US federal employment law thresholds by employee count
Canonical, always-current version: https://referencesource.org/regulatory-threshold-triggers/
Machine-readable: https://referencesource.org/regulatory-threshold-triggers/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-04
Stale after: 2027-08-04 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 32
Employee-count thresholds that trigger US… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/regulatory-threshold-triggers.vacuum-filter-fitment
Miele vacuum cleaner bag type by model series
Canonical, always-current version: https://referencesource.org/vacuum-filter-fitment/
Machine-readable: https://referencesource.org/vacuum-filter-fitment/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-03
Stale after: 2027-08-03 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 10
Which Miele dust bag type (GN, FJM, U, or KK) fits a given Miele vacuum… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/vacuum-filter-fitment.fastener-thread-standard-equivalence
Fastener standard equivalences: DIN to ISO / EN crossover
Canonical, always-current version: https://referencesource.org/fastener-thread-standard-equivalence/
Machine-readable: https://referencesource.org/fastener-thread-standard-equivalence/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-12
Stale after: 2028-08-11 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 164
Which ISO or EN standard… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/fastener-thread-standard-equivalence.lithium-battery-shipping-limits
Lithium battery shipping limits (49 CFR 173.185)
Canonical, always-current version: https://referencesource.org/lithium-battery-shipping-limits/
Machine-readable: https://referencesource.org/lithium-battery-shipping-limits/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-03
Stale after: 2027-01-30 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 15
Watt-hour and lithium-content thresholds, quantity… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/lithium-battery-shipping-limits.nfa-firearm-category-definitions-and-transfer-tax
NFA firearm category definitions and current transfer/making tax
Canonical, always-current version: https://referencesource.org/nfa-firearm-category-definitions-and-transfer-tax/
Machine-readable: https://referencesource.org/nfa-firearm-category-definitions-and-transfer-tax/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-25
Stale after: 2027-02-21 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 6… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/nfa-firearm-category-definitions-and-transfer-tax.state-osha-plan-penalty-maximums
State OSHA plan civil penalty maximums by violation type compared with federal
Canonical, always-current version: https://referencesource.org/state-osha-plan-penalty-maximums/
Machine-readable: https://referencesource.org/state-osha-plan-penalty-maximums/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-15
Stale after: 2027-02-11 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 25
Maximum civil… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/state-osha-plan-penalty-maximums.