A Brazil-focused engineering guide to CCS and CCUS, Law 14,993/2024, Decree 13,095/2026, ANP, dense-phase CO₂, pipelines, geological storage and monitoring.
Direct answer: what did Brazil regulate?
Decree 13,095/2026 details how Brazil’s ANP will authorise and oversee CO₂ capture for geological storage, pipeline transport and storage. It addresses project phases, shared infrastructure, closure, monitoring and financial safeguards without replacing environmental licensing.
CCS did not begin in Brazil in 2026. The country already has capture and reinjection experience associated with enhanced oil recovery. The framework now reaches dedicated storage chains and multi-user hubs.
CCS, CCUS, BECCS and DACCS are different
CCS captures, transports and geologically stores CO₂. CCUS includes utilisation, but not every use keeps carbon out of the atmosphere for the long term. BECCS combines bioenergy and storage; DACCS captures CO₂ directly from air before storage.
Climate performance depends on the full chain. A capture unit does not automatically create a carbon credit; Brazilian law makes eligibility dependent on separate market rules and methodologies.
How the chain works
CO₂ is separated, dehydrated, purified and compressed to a transport specification. Water and impurities affect corrosion, phase behaviour, metering, compression and decompression.
At the site, wells inject the stream into porous, permeable rock beneath a competent seal. This is normally pore-space storage, not filling an empty cavern. Characterisation, modelling and monitoring support containment.
Three time horizons—not one universal deadline
Law 14,993/2024 sets a 30-year ANP authorisation, renewable once for the same period if conditions are met. Decree 13,095/2026 sets an initial 20-year post-injection monitoring period.
Monitoring may be reduced if technical stability is demonstrated, including 50-year modelling. Fifty years is also part of the regulatory permanence definition; it is not a universal on-site monitoring term. Responsibility can remain after closure when instability persists.
The framework exists and remains in development
ANP has published Phase I requirements under experimental regulation. Full Phase II authorisation, operation, monitoring and closure criteria are still being developed.
ANP authorisation and environmental licensing are distinct. Existing occupational, equipment, environmental and local requirements also remain relevant.
CO₂ does not burn, but can create a major emergency
CO₂ is non-flammable, yet high concentrations can displace oxygen and cause serious physiological effects. US NIOSH values include a 5,000 ppm REL, 30,000 ppm short-term limit and 40,000 ppm IDLH. These are US references, not Brazilian legal limits.
Its reference relative density is about 1.53, but pressure, temperature, terrain, wind and mixing control dispersion. It does not simply remain on the ground in every release.
The Satartia lesson
A 2020 ground movement contributed to a CO₂ pipeline rupture near Satartia, Mississippi. About 200 people were evacuated and 45 received hospital treatment; no deaths occurred.
The official record highlights geohazards, terrain, weather, public communication and responder readiness. It does not prove all CO₂ pipelines are unsafe; it demonstrates what route-specific consequence analysis must include.
Dense CO₂ changes integrity requirements
CO₂ reaches its critical point near 31.04 °C and 73.82 bar. Rapid decompression can cause severe cooling and, in some conditions, solid formation. Water and impurities alter corrosion and phase behaviour.
Propagating fracture, welds, elastomers, valves, relief and transients require dedicated assessment. ISO 27913:2024 is a current international reference, not automatic Brazilian law or permission to reuse a gas pipeline.
Geological storage means proving containment
Saline formations and depleted fields may offer potential, but regional estimates are not proven site capacity. Seismic data, tests, wells, pressure, geochemistry and modelling reduce uncertainty.
Structural, residual, dissolution and mineral trapping can contribute over time. The CO₂ plume and pressure front are not identical; both affect boundaries, legacy wells and monitoring.
Wells, pressure and induced seismicity
Injection and legacy wells penetrate the seal and can become critical pathways if poorly characterised. Monitoring methods must connect each leakage hypothesis to detection and corrective action.
Injection changes pressure and stress. Induced seismicity is site-specific, depending on faults, stress, permeability, rate and volume. It is neither inevitable nor a risk that may be dismissed without evidence.
Brazilian occupational rules require real scope checks
NR-1 should address actual construction, commissioning, operation and maintenance hazards—not a generic hazard named CCS. NR-13 only applies to equipment within its scope; NR-33 requires an actual confined space.
NR-20 is not automatically triggered by non-flammable CO₂, although other substances may bring it into the project. Engineering must map pressure, asphyxiation, noise, electrical energy, excavation, lifting and emergency work by task.
Conclusion
Brazil now has a legal basis for connecting industrial sources, pipelines, wells and reservoirs. CCS may support hard-to-abate sectors, but capture alone is not proof of safe, permanent storage.
Credible projects combine climate accounting, integrity, occupational safety, environmental protection and long-term responsibility. That is how CCS becomes verifiable infrastructure rather than a label.
Frequently asked questions
Is CCS regulated in Brazil?
Law 14,993/2024 and Decree 13,095/2026 provide the legal basis; ANP is still developing full Phase II criteria.
Is CO₂ flammable?
No, but high concentrations can create severe asphyxiation and physiological hazards.
Does every CCS project generate carbon credits?
No. Eligibility depends on separate law, accounting rules and an applicable methodology.
Can a natural-gas pipeline carry CO₂?
Only after project-specific reassessment demonstrates technical viability.
References
- Decreto nº 13.095, de 12 de agosto de 2026Presidência da República
- Lei nº 14.993, de 8 de outubro de 2024Presidência da República
- Captura e Armazenamento de Carbono — CCSAgência Nacional do Petróleo, Gás Natural e Biocombustíveis
- Relatório de Análise de Impacto Regulatório — CCSANP
- EPE reedita caderno sobre potencial nacional de CCUSEmpresa de Pesquisa Energética
- ISO 27913:2024 — CO₂ pipeline transportation systemsInternational Organization for Standardization
- ISO 27914:2026 — Geological storageInternational Organization for Standardization
- NIOSH Pocket Guide — Carbon dioxideU.S. National Institute for Occupational Safety and Health
- NIOSH IDLH — Carbon dioxideU.S. National Institute for Occupational Safety and Health
- Failure Investigation Report — Denbury Gulf Coast PipelineU.S. Pipeline and Hazardous Materials Safety Administration
- Carbon capture, usage and storage: major hazard potentialUK Health and Safety Executive