Louisiana Oil Pipeline Laws: Permits, Reporting, and Penalties

Louisiana oil pipeline laws come from two directions at once: state statutes administered by the Louisiana Department of Natural Resources and the Louisiana Department of Environmental Quality, and federal rules enforced primarily by the Pipeline and Hazardous Materials Safety Administration and the U.S. Army Corps of Engineers. Operators need permits before they build, must follow federal safety and integrity rules while they operate, must report incidents on tight deadlines, and face civil penalties up to $272,926 per violation per day along with criminal exposure for willful conduct.¹ The rules below are the ones that drive compliance decisions day to day.

Which Agencies Regulate Oil Pipelines in Louisiana

Four agencies do most of the work. The LDNR oversees oil and gas operations under Title 30 of the Louisiana Revised Statutes, including authority to issue rules on pipeline construction and operation and to install meters on pipelines and gathering systems.² The LDEQ handles the environmental side under the Louisiana Environmental Quality Act, setting water quality standards, permitting wastewater discharges, and acting against unauthorized pollution of surface or ground waters.³

Federally, PHMSA writes and enforces the pipeline safety rules at 49 CFR Part 195 for hazardous liquid pipelines, which includes crude oil. Part 195 reaches any hazardous liquid pipeline in or affecting interstate commerce, from crossings of commercially navigable waterways down to onshore gathering lines in non-rural areas.⁴ The Corps controls the federal permits for water and wetland crossings. Projects in coastal areas also run through a federal consistency review under the Coastal Zone Management Act before federal agencies can issue permits.⁵

Permits You Need Before Construction

Permitting almost always involves more than one agency, and the applications run in parallel rather than in sequence.

Coastal Use Permit

Any pipeline project in Louisiana’s coastal zone needs a coastal use permit before work starts. Under Louisiana Revised Statutes 49:214.30, no one can begin a “use of state or local concern” in the coastal zone without first applying for and receiving the permit, and the secretary must verify the project is consistent with Louisiana’s master plan for integrated coastal protection. For pipeline repair or replacement that could affect the coastal plan, the permit must require the pipeline owner to cover the cost of those impacts.⁶

Pipeline construction, siting, and operation are explicitly listed as uses of state or local concern in Louisiana’s administrative code. One carve-out matters: the location, drilling, exploration, and production of oil and gas already regulated by the Office of Conservation do not need a separate coastal use permit, and instead go through an in-lieu permit process under a memorandum of understanding between the Coastal Management Section and the Office of Conservation.⁷ A new pipeline route through coastal wetlands needs the full coastal use permit; routine production activity at an existing well site may not.

Applications go through a Joint Permit Application. Applicants have to supply a needs, alternatives, and justification analysis, along with a hydrologic modification impact analysis for projects that alter water flow. The Office of Coastal Management encourages pre-application consultation and will coordinate interagency meetings with other regulators and resource agencies that have an interest.⁸

Federal Water-Crossing Permits

Pipelines that cross waters or wetlands trigger two separate Corps authorizations. Section 404 of the Clean Water Act covers any discharge of dredged or fill material into waters of the United States, including wetlands. Trenching through wetlands, placing fill for access roads, and installing subaqueous utility lines all fall under this requirement.⁹

Section 10 of the Rivers and Harbors Act of 1899 separately requires authorization for the construction of any structure in or over navigable waters, including subaqueous pipelines, and applies to associated structures like intake pipes or bank protection as well.¹⁰ A single crossing often needs both.

Public comment runs through both the state and federal processes, giving landowners and stakeholders a chance to raise concerns before any permit issues.

Safety and Integrity Rules While Operating

Part 195 covers the full lifecycle of a hazardous liquid pipeline: design, construction, operation, and maintenance, along with spill prevention, emergency response plans, and routine maintenance obligations. Operators also submit annual reports by June 15 each year for each type of hazardous liquid pipeline facility, broken out by product type and by state.⁴

The LDEQ layer runs alongside the federal rules. The secretary can set water quality standards, develop wastewater discharge permitting procedures, adopt management practice and monitoring rules, and investigate complaints. State requirements sometimes go further than the federal floor, and operators have to satisfy both.³

Integrity Management in High Consequence Areas

Pipeline segments that could affect “high consequence areas” carry heavier obligations. Under 49 CFR 195.452, operators of hazardous liquid pipelines must develop a written integrity management program covering the risks on each covered segment. The program has to include a plan for baseline integrity assessments, a framework for continual assessment and evaluation, and a description of the specific inspection methods being used.¹¹

In-line inspection tools are the default. When in-line inspection is impracticable because of pipeline construction (diameter changes, sharp bends, low flow, or lack of tool technology for the pipe size), operators can use alternative practices only after demonstrating through a reliable engineering evaluation that the alternative provides equivalent public safety and environmental protection.¹¹ PHMSA expects the file to show why the alternative method works for the specific pipeline and threat profile.

When You Have to Report an Incident

Reporting deadlines are short. Operators must call the National Response Center within one hour of any hazardous material release that meets reporting thresholds, submit an update within 48 hours, and file a full written report within 30 days.¹²

Under 49 CFR 195.50, a hazardous liquid release is reportable if any of the following apply:

An explosion or fire not intentionally set by the operator
A release of five gallons or more of hazardous liquid, with a narrow exception for releases under five barrels during maintenance that are confined to company property and cleaned up promptly
Any death or hospitalization resulting from the release
Property damage exceeding $50,000, including cleanup costs, lost product, and damage to the operator’s or others’ property¹³

The five-gallon threshold catches operators off guard. A release that looks minor on the ground is still a reportable federal incident once it reaches that volume.

Dig Notifications and Damage Prevention

Louisiana’s Underground Utilities and Facilities Damage Prevention Law governs anyone excavating near pipelines. Under Louisiana Revised Statutes 40:1749.13, excavators must contact the regional notification center (Louisiana One Call) at least 48 hours but no more than 120 hours before starting work, excluding weekends and holidays, and then wait at least 48 hours beginning at 7:00 a.m. on the next working day following notification before breaking ground.¹⁴

Before calling, the excavator has to physically mark the proposed dig area with white paint, flags, stakes, or similar markers following American Public Works Association guidelines. The notification itself must give the name and contact information of the person responsible for the excavation, the starting date and anticipated duration, a description of the work, the specific location, and whether directional boring or explosives will be used.¹⁴ If work has not begun within 120 hours of the mark-by time (excluding weekends and holidays), the excavator is in violation unless there’s a mutual agreement with the facility operator to extend or an extraordinary circumstance.

Federal law adds criminal exposure. Under 49 USC 60123, anyone who knowingly and willfully excavates without using an available one-call system and then damages a pipeline causing death, serious bodily harm, or significant property damage can be sentenced to up to five years in prison.¹⁵

Annual Data Submissions to the National Pipeline Mapping System

Hazardous liquid pipeline operators submit pipeline location and attribute data to the National Pipeline Mapping System by June 15 each year, reflecting data as of December 31 of the prior year. Gas transmission operators have a March 15 deadline, and operators who report both pipeline types under one operator identification number are asked to submit a single combined report by March 15.¹⁶

Even if nothing has changed, operators must log into OSAVE and file a “no change” notification to satisfy the annual requirement. Any change to primary, technical, or public contact information must be updated through OSAVE as it occurs, not just at the annual deadline. Operators also report any pipeline facilities abandoned during the reporting year, and under 49 CFR 195.59 and 192.727 must file separate reports for each abandoned facility crossing a commercially navigable waterway.¹⁶

Eminent Domain and the Limits of a Common Carrier

Pipeline operators in Louisiana are classified as common carriers under Louisiana Revised Statutes 45:251, which treats persons engaged in petroleum transportation as public utilities and common carriers for hire.¹⁷ That status carries the power of expropriation, meaning an operator can acquire a servitude for a pipeline over a landowner’s objection. It does not mean an operator can start before the legal right to enter exists.

The Louisiana Supreme Court made the point in Bayou Bridge Pipeline, LLC v. 38.00 Acres. Bayou Bridge began clearing trees, digging trenches, and constructing its crude oil pipeline on private property in St. Martin Parish in July 2018 before it had legal authority to be there. The trial court eventually granted the expropriation after finding the pipeline served a public and necessary purpose, but also found Bayou Bridge had trespassed on the defendants’ property for roughly five months before acquiring the right to enter.¹⁸

The Supreme Court held that the defendants’ constitutionally guaranteed due process rights under Article 1, Section 4 of the Louisiana Constitution had been “willfully, wantonly, and recklessly violated” by the decision to enter and begin construction without authorization.¹⁸ Expropriation authority has to be established before the taking, not after.

Penalties for Non-Compliance

State and federal penalties stack. The same incident can draw sanctions from the LDNR under state law and PHMSA under federal law.

State Penalties

Under Louisiana Revised Statutes 30:18, anyone who violates the state’s oil and gas conservation laws, or any rule, regulation, or order issued under them, faces civil penalties up to $5,000 per day per violation. Knowing and willful violations are a misdemeanor carrying criminal fines up to $5,000 per day per violation.¹⁹

Penalties climb for more serious conduct. Violations involving the disposal of hazardous wastes can reach $25,000 per day per violation in civil penalties, and willful and knowing hazardous waste violations carry criminal fines up to $25,000 per day plus prosecution costs, imprisonment up to one year, or both. Violations involving underground hydrocarbon storage caverns carry the steepest state penalties: up to $32,500 per day in civil fines, with an additional penalty up to $1 million when an intentional violation causes irreparable environmental damage or endangers human life.¹⁹ The LDNR can also issue cease and desist orders halting operations.

Federal Penalties

Federal civil penalties run considerably higher. As of February 2026, PHMSA can impose civil penalties up to $272,926 per violation per day, capped at $2,729,245 for a related series of violations.¹ Those inflation-adjusted figures sit above the base statutory amounts of $200,000 and $2,000,000 set in 49 USC 60122.²⁰

Criminal exposure is substantial. A person who knowingly and willfully violates pipeline safety requirements can be fined under Title 18 and sentenced to up to five years in prison. Knowingly and willfully damaging or destroying a pipeline facility used in interstate commerce carries up to 20 years, and a life sentence is possible if a death results.¹⁵

The Insurance Gap

One detail changes the real financial exposure: there is no federal or state requirement for hazardous liquid pipeline companies to carry general liability insurance or demonstrate financial assurance for potential damages. Regulators can impose civil penalties but generally cannot address damages to private parties. Affected landowners and communities pursue damage claims through civil litigation on their own, which sits on top of whatever the agencies assess.

1
Pipeline and Hazardous Materials Safety Administration. Civil Penalty Summary
2
Louisiana State Legislature. Louisiana Code RS 30:4 – Jurisdiction, Duties, and Powers of the Secretary; Rules and Regulations
3
Louisiana State Legislature. Louisiana Code RS 30:2074 – Water Quality Control; Secretary of Environmental Quality; Powers and Duties
4
eCFR. 49 CFR Part 195 – Transportation of Hazardous Liquids by Pipeline
5
Bureau of Ocean Energy Management. Coastal Zone Management Act
6
Louisiana State Legislature. Louisiana Code RS 49:214.30 – Coastal Use Permits
7
Legal Information Institute. Louisiana Code Tit. 43, I-723 – Rules and Procedures for Coastal Use Permits
8
Louisiana Department of Natural Resources. Applying for a Coastal Use Permit
9
US Army Corps of Engineers. Section 404 of the Clean Water Act
10
US Army Corps of Engineers. Section 10 of the Rivers and Harbors Act
11
eCFR. 49 CFR 195.452 – Pipeline Integrity Management in High Consequence Areas
12
Pipeline and Hazardous Materials Safety Administration. Incident Reporting
13
eCFR. 49 CFR 195.50 – Reporting Accidents
14
Justia. Louisiana Revised Statutes 40:1749.13 – Excavation and Demolition; Prohibitions
15
GovInfo. 49 USC 60122 – Civil Penalties and 60123 – Criminal Penalties
16
National Pipeline Mapping System. Overview of the Pipeline Submission Process
17
Justia. Louisiana Revised Statutes 45:251 – Definitions
18
FindLaw. Bayou Bridge Pipeline LLC v. 38.00 Acres More or Less Located in St. Martin Parish (2021)
19
Louisiana State Legislature. Louisiana Code RS 30:18 – Penalties for Violation
20
GovInfo. 49 USC 60122 – Civil Penalties