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// regulation → measurement

Industrial Emissions Directive
Permits, BAT-AELs, continuous emission monitoring (EN 14181)

The revised IED tightens permits to the stricter end of BAT-AEL ranges and asks for environmental management systems. The permit says what to measure, how often, and with what quality assurance — usually EN 14181.

Plant operators with IED permits (combustion, chemicals, waste, metals, cement, food)Environmental managersAnalyzer-house and CEMS integrators
Get a quote for this rule →Official text ↗
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Key dates
4 Aug 2024
Entry into force
1 Jul 2026
Transposition deadline for Member States (Art. 4(1))
after 1 Jul 2026
Installations comply with new BAT conclusions within 4 years of their publication (Art. 21/15 as amended)
What the rule requires

Article references are to the text in the Official Journal; summaries are informational, not legal advice.

Emission limit values at the strict endPermits must set ELVs as strict as achievable within BAT-AEL ranges unless the operator demonstrates it is not feasible (amended Art. 15).
Environmental management systemOperators of Annex I installations implement an EMS with, among others, monitoring and improvement objectives (amended Art. 14a) — national transposition sets the date.
Monitoring per permit — Art. 14/16The permit fixes measurement methodology, frequency and evaluation procedure; continuous measurement where BAT conclusions require it (e.g. large combustion, waste incineration).
Quality assurance — EN 14181Where continuous emission monitoring is required, QAL1 (suitability, EN 15267), QAL2 (calibration against the standard reference method), QAL3 (drift/precision control) and AST (annual surveillance test) apply — see EN 14181 scope.
ReportingOperators report monitoring results to the competent authority at least annually; from 2026 national portals feed the Industrial Emissions Portal (Reg. 2024/1244).
What you have to measure
  • CO₂, CO, SO₂, N₂O, NH₃ in stack gas — continuous (CEMS) or periodic, per permit
  • O₂ reference and flue-gas flow (for mass emissions) — non-NDIR channels
  • Process gases upstream (biogas, syngas) to control the emission source
  • QAL3 drift checks with test gases; calibration records for the verifier
// Exceeding ELVs → permit conditions breached, suspension possible (Art. 8); Member States must apply effective, proportionate and dissuasive penalties including fines related to turnover (amended Art. 79).
Tremon products for this rule
L2 · field instrument
TRM-PGA
One to seven gases, one heated cuvette, one record.
→ details
L1 · OEM channel
IR·OEM
Your instrument. Our NDIR channel.
→ details
L3 · system
GDC
Thirty analyzers, one cabinet, one SCADA link.
→ details
CO₂Carbon dioxideCOCarbon monoxideSO₂Sulfur dioxideN₂ONitrous oxideNH₃Ammonia
Questions engineers ask
Is a TRM-PGA a certified CEMS?
The TRM-PGA is a process analyzer with traceable calibration; QAL1 certification (EN 15267) is application-specific and confirmed per project. For permit-grade CEMS we scope the certification path with you.
What does EN 14181 ask of the analyzer?
Suitability (QAL1), an initial calibration against the reference method on site (QAL2), ongoing drift control (QAL3) and an annual test (AST). The analyzer must support zero/span checks and store them.
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Tell us what you measure — just tap

Three taps and an email. An engineer replies within 24 h with feasibility and a price indication.

1 · Which gas?
2 · What for?
3 · What form?
4 · Where do we reply?
Goes to sales@tremon.nl. No newsletter, no tracking.
Other regulations
SF₆ switchgearF-gas Regulation (EU) 2024/573LDAR surveys, repair deadlinMethane Regulation (EU) 2024/1787Permits, BAT-AELs, continuouIndustrial Emissions DirectiveCarbon border adjustmentCBAMIndoor air quality monitorinEPBD recastToxic and combustible gas deWorkplace: exposure limits (2017/164, 20Digester control and grid-inBiomethane: REPowerEU target & EN 16723
Sources
  1. Directive (EU) 2024/1785, OJ L, 15.7.2024 — Art. 4, amended Art. 14, 14a, 15, 16, 21, 79; text saved 2026-09-17 from EUR-Lex
  2. EN 14181:2014 — Stationary source emissions — QA of automated measuring systems (scope abstract)
  3. UK Environment Agency M20 (guidance on EN 14181 implementation) — for terminology only
// Read from the Official Journal texts on 2026-09-17. Regulations change — verify the current consolidated text before acting.
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