🔔 EPA GHGRP Sector-Gas Emission Ledger

One sector_emission_record per row of EPA GHGRP's PUB_FACTS_SECTOR_GHG_EMISSION table — one facility × reporting sector / subsector × gas × year, with the self-reported CO2e emission value carried verbatim, and the sector, subsector and gas IDs labelled from EPA's own dimension tables.

Differentiation: the filtered, provenance-preserving sector-gas ledger from the keyless EPA Envirofacts API — the sector/subsector cut (distinct from the subpart cut), honest about what it is. Filter by year, facility, or sector code; pay per delivered row. The small sector/subsector/gas dimension tables are fetched once and cached — nothing is recomputed.

Output is one sector_emission_record row per result; billing is pay-per-event, the value event being one sector emission record (a $0.02 start fee per run, then $0.02 per sector emission record). Source: data.epa.gov, www.epa.gov.

📊 Sample Output

Real rows from run TGm8unfZhaDQAXRp9 on build 0.1.9 (2026-10-02), the same input as the Quick start below — every value is as the source published it (emails masked, long text shortened):

facility_id	sector_code	sector_name	subsector_desc	gas_name	co2e_emission_unit
1000001	POWERPLANTS	Power Plants	Power Plants	Carbon Dioxide	metric tons CO2e (as reported)
1000001	POWERPLANTS	Power Plants	Power Plants	Methane	metric tons CO2e (as reported)
1000001	POWERPLANTS	Power Plants	Power Plants	Nitrous Oxide	metric tons CO2e (as reported)
1000002	MINERALS	Minerals	Glass Production	Carbon Dioxide	metric tons CO2e (as reported)
1000002	MINERALS	Minerals	Glass Production	Methane	metric tons CO2e (as reported)
1000002	MINERALS	Minerals	Glass Production	Nitrous Oxide	metric tons CO2e (as reported)
1000003	MINERALS	Minerals	Glass Production	Carbon Dioxide	metric tons CO2e (as reported)
1000003	MINERALS	Minerals	Glass Production	Methane	metric tons CO2e (as reported)

The run finished with the status message: NORMAL: 50 unique rows (0 duplicates collapsed). billable=50

✅ What you get

Each row is flat JSON with these fields (from the dataset schema and the sample run; a field the source does not publish for a given row is null):

• record_type (string/null) — e.g. sector_emission_record
• facility_id (string/null) — e.g. 1000001
• year (string/null) — e.g. 2023
• sector_id (string/null) — e.g. 3
• sector_code (string/null) — e.g. POWERPLANTS
• sector_name (string/null) — e.g. Power Plants
• subsector_id (string/null) — e.g. 1
• subsector_name (string/null) — e.g. D
• subsector_desc (string/null) — e.g. Power Plants
• gas_id (string/null) — e.g. 1
• gas_code (string/null) — e.g. CO2
• gas_name (string/null) — e.g. Carbon Dioxide
• co2e_emission (string/null) — e.g. 714523.1
• co2e_emission_unit (string/null) — e.g. metric tons CO2e (as reported)
• record_key (string/null) — e.g. 1000001:2023:3:1:1
• source_url (string/null) — e.g. https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/facility_id/1000001
• source (string/null) — e.g. epa-ghgrp-sector-gas-emission-ledger
• release_date (string/null) — null in every sample row
• observed_at (string/null) — e.g. 2026-10-02T06:29:06Z
• license (string/null) — e.g. U.S. EPA Greenhouse Gas Reporting Program (GHGRP) via EPA Envirofacts — U.S. Gov
• attribution (string/null) — e.g. U.S. Environmental Protection Agency — Envirofacts / GHGRP (https://www.epa.gov/
• release_checksum (string/null) — null in every sample row
• terminal (string/null) — null in every sample row
• scope (string/null) — null in every sample row
• note (string/null) — null in every sample row
• reported_total (string/integer/null) — null in every sample row
• raw_seen (string/integer/null) — null in every sample row
• duplicates (string/integer/null) — null in every sample row
• unique_found (string/integer/null) — null in every sample row
• delivered (string/integer/null) — null in every sample row

✅ What you get

• record_type (string/null) — e.g. sector_emission_record
• facility_id (string/null) — e.g. 1000001
• year (string/null) — e.g. 2022
• sector_id (string/null) — e.g. 3
• sector_code (string/null) — e.g. POWERPLANTS
• sector_name (string/null) — e.g. Power Plants
• subsector_id (string/null) — e.g. 1
• subsector_name (string/null) — e.g. D
• subsector_desc (string/null) — e.g. Power Plants
• gas_id (string/null) — e.g. 1
• gas_code (string/null) — e.g. CO2
• gas_name (string/null) — e.g. Carbon Dioxide
• co2e_emission (string/null) — e.g. 464288.6
• co2e_emission_unit (string/null) — e.g. metric tons CO2e (as reported)
• record_key (string/null) — e.g. 1000001:2022:3:1:1
• source_url (string/null) — e.g. https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/facility_id/1000001
• source (string/null) — e.g. epa-ghgrp-sector-gas-emission-ledger
• release_date (string/null) — null in every sample row
• observed_at (string/null) — e.g. 2026-09-19T00:28:09Z
• license (string/null) — e.g. U.S. EPA Greenhouse Gas Reporting Program (GHGRP) via EPA Envirofacts — U.S. Gov
• attribution (string/null) — e.g. U.S. Environmental Protection Agency — Envirofacts / GHGRP (https://www.epa.gov/
• release_checksum (string/null) — null in every sample row
• terminal (string/null) — null in every sample row
• scope (string/null) — null in every sample row
• note (string/null) — null in every sample row
• reported_total (string/integer/null) — null in every sample row
• raw_seen (string/integer/null) — null in every sample row
• duplicates (string/integer/null) — null in every sample row
• unique_found (string/integer/null) — null in every sample row
• delivered (string/integer/null) — null in every sample row

✅ What you get

• record_type (string/null) — e.g. sector_emission_record
• facility_id (string/null) — e.g. 1000001
• year (string/null) — e.g. 2022
• sector_id (string/null) — e.g. 3
• sector_code (string/null) — e.g. POWERPLANTS
• sector_name (string/null) — e.g. Power Plants
• subsector_id (string/null) — e.g. 1
• subsector_name (string/null) — e.g. D
• subsector_desc (string/null) — e.g. Power Plants
• gas_id (string/null) — e.g. 1
• gas_code (string/null) — e.g. CO2
• gas_name (string/null) — e.g. Carbon Dioxide
• co2e_emission (string/null) — e.g. 464288.6
• co2e_emission_unit (string/null) — e.g. metric tons CO2e (as reported)
• record_key (string/null) — e.g. 1000001:2022:3:1:1
• source_url (string/null) — e.g. https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/facility_id/1000001
• source (string/null) — e.g. epa-ghgrp-sector-gas-emission-ledger
• release_date (string/null) — null in every sample row
• observed_at (string/null) — e.g. 2026-09-18T23:42:45Z
• license (string/null) — e.g. U.S. EPA Greenhouse Gas Reporting Program (GHGRP) via EPA Envirofacts — U.S. Gov
• attribution (string/null) — e.g. U.S. Environmental Protection Agency — Envirofacts / GHGRP (https://www.epa.gov/
• release_checksum (string/null) — null in every sample row
• terminal (string/null) — null in every sample row
• scope (string/null) — null in every sample row
• note (string/null) — null in every sample row
• reported_total (string/integer/null) — null in every sample row
• raw_seen (string/integer/null) — null in every sample row
• duplicates (string/integer/null) — null in every sample row
• unique_found (string/integer/null) — null in every sample row
• delivered (string/integer/null) — null in every sample row

⚙️ Sample inputs

1. Quick start — the Store example (this is what the sample above came from)

{
  "reportingYears": [
    "2023"
  ],
  "maxRecords": 50
}

The sample run charged exactly: 1 × $0.02 apify-actor-start + 50 × $0.02 sector_emission_record = $1.02 on the Free tier — every delivered row was billed.

2. A smaller, narrowed run

{
  "reportingYears": [
    "2023"
  ],
  "maxRecords": 5
}

Caps the run at 5 rows — about $0.12 on the Free tier ($0.02 start + 5 × $0.02).

3. A full-size run

{
  "reportingYears": [
    "2023"
  ],
  "maxRecords": 2500
}

Up to 2500 rows (the schema default for maxRecords) — about $50.02 on the Free tier ($0.02 start + 2500 × $0.02) if the source has that many.

4. A filtered run

{
  "reportingYears": [
    "2023"
  ],
  "maxRecords": 50,
  "fieldMatch": {
    "sector_name": "Power Plants"
  }
}

Keeps only rows whose sector_name contains Power Plants (a value from the sample run above), matched case-insensitively after the source is read and before the maxRecords cap, so the cap counts matches and only delivered matches are billed. searchText does the same across every column. Zero matches end the run as EMPTY_SELECTION with no row charged — if the source has moved on since that sample run, pick a value you see in your own first run. The source is still read in full — this narrows what you receive and pay for, not what the source serves.

🧾 JSON sample record

One real record from run TGm8unfZhaDQAXRp9, exactly as it lands in the dataset (emails masked, long text shortened):

{
  "record_type": "sector_emission_record",
  "facility_id": "1000001",
  "year": "2023",
  "sector_id": "3",
  "sector_code": "POWERPLANTS",
  "sector_name": "Power Plants",
  "subsector_id": "1",
  "subsector_name": "D",
  "subsector_desc": "Power Plants",
  "gas_id": "1",
  "gas_code": "CO2",
  "gas_name": "Carbon Dioxide",
  "co2e_emission": "714523.1",
  "co2e_emission_unit": "metric tons CO2e (as reported)",
  "record_key": "1000001:2023:3:1:1",
  "source_url": "https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/facility_id/1000001/JSON",
  "source": "epa-ghgrp-sector-gas-emission-ledger",
  "release_date": null,
  "observed_at": "2026-10-02T06:29:06Z",
  "license": "U.S. EPA Greenhouse Gas Reporting Program (GHGRP) via EPA Envirofacts — U.S. Government work, public domain. Attribution: U.S. Environmental Protection Agency, Envirofacts. Reported values carried verbatim; these are self-reported filings, ",
  "attribution": "U.S. Environmental Protection Agency — Envirofacts / GHGRP (https://www.epa.gov/enviro)"
}

🔧 How it works

Source. The actor reads data.epa.gov, www.epa.gov — endpoints: https://data.epa.gov/efservice, https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/, https://data.epa.gov/robots.txt, https://www.epa.gov/enviro. Public pages and feeds only; nothing behind a login.

Transport. Plain HTTPS from the Apify platform, no proxy. robots.txt is read first and a disallowed path is never fetched. Every request carries an identified contact User-Agent. Pacing: CRAWL_DELAY=0.0.

Terminal states. A run ends NORMAL, CAPPED (your cap was reached), PARTIAL (something was withheld and the message says what), GENUINE_EMPTY (the source was read and truly had nothing in scope) or BLOCKED (the source refused or changed shape — the run FAILS loud and bills nothing). A zero-row run is never reported as a silent success.

Charging. Each sector emission record is charged at the moment it is pushed (sector_emission_record); a row that fails to charge is not delivered, so the dataset count always equals the charged count.

🔧 How it works

🔧 How it works

Source

The official, keyless EPA Envirofacts REST API only — https://data.epa.gov/efservice/PUB_FACTS_SECTOR_GHG_EMISSION/..., with PUB_DIM_SECTOR, PUB_DIM_SUBSECTOR and PUB_DIM_GHG as cached label joins. The enviro.epa.gov host (real robots.txt Disallow:/) is never touched; the actor re-reads data.epa.gov/robots.txt at runtime and STOPS (loud, unbilled) if /efservice is ever disallowed.

Honesty rules

Reported values and units are carried verbatim (co2e_emission, labelled metric tons CO2e, as reported). These are self-reported filings — NOT verified carbon footprints, and this actor makes no compliance determination and applies no emissions math. Queries are paginated in small ROWS windows under the Envirofacts 15-minute cutoff; a COUNT/body mismatch fails loud and bills nothing.

Licence & attribution

EPA GHGRP via Envirofacts — U.S. Government work (public domain). Attribution: U.S. Environmental Protection Agency, Envirofacts. No EPA seal or logo is used.

Billing

Pay-per-event. sector_emission_record is charged once per delivered record ($0.02), GOLD-floored −10 / −20 / −33% volume ladder. apify-actor-start ($0.02) is platform-reserved, never charged in code.

What is not done. No login, no cookie or CAPTCHA bypass, no private or personal-account data, no browser automation.

💰 Pricing example

Event	Free	Bronze	Silver	Gold
Actor Start (apify-actor-start)	$0.02	$0.02	$0.02	$0.02
Sector Emission Record (sector_emission_record)	$0.02	$0.018	$0.016	$0.0134

Worked at the live Free-tier price:

• 8 sector emission records: $0.02 start + 8 × $0.02 = $0.18
• 25 sector emission records: $0.02 start + 25 × $0.02 = $0.52
• 2500 sector emission records: $0.02 start + 2500 × $0.02 = $50.02

A run that delivers zero rows charges the $0.02 start fee only. A BLOCKED run (source refused) fails loud and charges no value event. The start fee is charged once per GB of run memory; the default run memory is 4096 MB.

Yield on the sample run: NORMAL: 50 unique rows (0 duplicates collapsed). billable=50. maxRecords is a hard ceiling on what is delivered and billed, never a target.

⚖️ Legal & ToS

This actor reads public, logged-out pages and feeds published by data.epa.gov, www.epa.gov. It collects only what the source publishes to any visitor, keeps to the source's robots rules (checked on every run), identifies itself with a contact User-Agent, and does not access accounts, private data or anything behind authentication. Use the output in line with the source's terms and your local law; the intended use is B2B research and monitoring.

❓ FAQ

Q: Do I need an API key or a login?
A: No. The source (data.epa.gov, www.epa.gov) is read logged-out; the input schema has no key field and the actor carries no secrets.

Q: Why did my run return 0 rows?
A: Read the run's status message. GENUINE_EMPTY means the source was read and had nothing in scope for your input; BLOCKED means the source refused and the run failed without billing a value event — retry later or narrow the input. A zero-row run bills the start fee only.

Q: How many rows can one run return?
A: Up to maxRecords (default 2500). Raise the cap for a bigger run; you pay per delivered row.

Q: How fresh is the data?
A: Every run reads the source live at run time; nothing is cached between runs. Put it on a schedule for a continuous feed.

Q: What formats can I export?
A: The dataset downloads as JSON, CSV, Excel, XML or RSS from the run's Dataset tab or the Apify API, and any run can push to a webhook or integration.

Q: How is this different from the other NexGen Watch actors actors?
A: Same output shape and billing model; this one covers data.epa.gov, www.epa.gov. The siblings under Related Actors cover the other sources or slices — run several on one schedule for a combined feed.

Q: Are there rate limits?
A: The actor paces itself against the source (CRAWL_DELAY=0.0) and honours its robots rules; there is no per-buyer limit beyond your Apify plan's concurrency.

🆘 Troubleshooting

• Run FAILED with BLOCKED → the source refused the request or changed its page shape → nothing was billed beyond the start fee; retry after a while, and if it persists open an Issue with the run id.
• Status says CAPPED → your cap (maxRecords) was reached → raise it for a bigger run.
• Input validation error on start → a field is outside the schema's allowed values → start from the Quick start block and change one field at a time.
• Run TIMED-OUT → a very wide request on a slow day → raise the run timeout in Run options or narrow the input; what was delivered before the timeout is still in the dataset.

🔗 Related Actors

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• 🏢 About NexGenData — NexGen Watch is NexGenData's fleet of more than 300 public data actors built on official sources, pay-per-result. Browse the catalog at apify.com/nexgenwatch.

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