Environmental Impact Assessment (EIA) in Malaysia: When It's Required and How It Works

Break ground on the wrong kind of project without a green light, and you are not just facing a fine — you may be forced to stop while your capital sits idle. In Malaysia, a defined list of “prescribed activities” cannot legally begin until an Environmental Impact Assessment (EIA) report has been submitted to, and approved by, the Director General of Environment. For developers and investors, the EIA is not paperwork at the end of planning; it is a gate at the start.

This guide explains when an EIA is required, how the two-track system under the 2015 Order works, what the public display stage involves, and how approval — with or without conditions — actually binds your project.

What is the legal basis for the EIA requirement?

The requirement sits in Section 34A of the Environmental Quality Act 1974 (Act 127). It gives the Minister power to prescribe, by order, any activity that “may have significant environmental impact” as a prescribed activity. Anyone intending to carry out such an activity must, before the relevant approving authority grants approval, submit a report to the Director General assessing the activity’s likely impact on the environment and the measures proposed to prevent, reduce or control it.

The list of what actually counts as a prescribed activity is set out in a piece of subsidiary legislation: the Environmental Quality (Prescribed Activities)(Environmental Impact Assessment) Order 2015, administered by the Department of Environment (DOE). If your project type and scale are named in that Order, an EIA is mandatory. If they are not, Section 34A does not apply.

Which projects need an EIA?

The 2015 Order lists prescribed activities across sectors that typically carry heavy environmental footprints — for example agriculture, drainage and irrigation, land reclamation, fisheries, forestry, housing, industry, infrastructure, ports, mining, petroleum, power generation, quarries, railways, waste treatment and disposal, and coastal or slope development.

Crucially, the Order does not just name sectors — it attaches thresholds (size, capacity, location) to each. A small facility may fall outside the Order while a larger one of the same type falls inside it. The practical first step for any proponent is therefore to check the exact activity and threshold in the schedules, because that also determines which track you are on.

First Schedule or Second Schedule — what’s the difference?

The 2015 Order divides prescribed activities into two schedules, and the difference matters a great deal for your timeline and your exposure to public scrutiny:

Feature	First Schedule activity	Second Schedule activity
Public display of the report	Not mandatory (unless the Director General directs otherwise in writing)	Required — the report is displayed for public comment
Public comment	Not mandatory	Required
Typical scrutiny	Lighter, department-level review	Higher, with public participation
Practical implication	Generally faster to a decision	Longer; feedback must be addressed

These two tracks are also described as a lighter “Preliminary EIA” versus a fuller “Detailed EIA” — the DOE’s own procedural terminology, which originated under the earlier Environmental Quality (Prescribed Activities)(EIA) Order 1987 that the 2015 Order expressly revoked. First Schedule activities correspond to the preliminary-EIA track (no mandatory public display) and Second Schedule activities to the detailed-EIA track (mandatory public display and public comment): lower-impact prescribed activities get a streamlined review, and the highest-impact ones are opened to public participation before a decision is made.

Who prepares the report?

An EIA report is prepared by environmental consultants engaged by the proponent, not written up in-house on an ad hoc basis. Since 1 June 2007, any individual involved in an EIA study must be registered under the DOE’s EIA Consultant Registration Scheme, and only DOE-registered persons may conduct an EIA study in Malaysia. The scheme is tiered into three categories: an EIA Consultant — a Certified Professional in EIA (CePEIA), who leads the study team — plus Subject Consultants and Assistant Consultants. Consultants are generally expected to engage the DOE early — ideally at the project-identification stage — so that the scope of the assessment is agreed before fieldwork begins.

Getting the scope, baseline studies and terms of reference right early can avoid a later, more expensive cycle of rejection and resubmission.

What does the approval decision look like?

Once the report is submitted, the Director General examines it and makes inquiries as necessary. Section 34A sets out three possible outcomes:

• Approval with or without conditions — under Section 34A(3), if the report satisfies the requirements and the proposed mitigation measures are adequate, the Director General approves it and informs both the proponent and the relevant approving authorities. Conditions attached here are not optional extras; they follow the project.
• Rejection with reasons — under Section 34A(4), if the report is inadequate, the Director General must not approve it and must give reasons. Rejection does not end the road: the proponent may revise and resubmit.
• A request for more reports — under Section 34A(5), the Director General may require more than one report before deciding.

Where approval carries conditions, Section 34A(7) requires the proponent, while carrying out the activity, to provide sufficient proof that the conditions are being complied with and that the mitigation measures are being built into the design, construction and operation of the project. In other words, the EIA keeps working long after the report is stamped.

When can construction actually start?

This is the rule that catches proponents out. Section 34A(6) prohibits carrying out a prescribed activity until the report has been submitted to the Director General and approved. An approving authority for the underlying project — planning, land, or sectoral — also cannot grant its approval before the EIA is in.

So the sequence is: identify that you have a prescribed activity → appoint a registered consultant → scope and prepare the report → (for Second Schedule activities) go through public display and comment → obtain the Director General’s approval → then, and only then, proceed with the other approvals and works.

What are the penalties for getting it wrong?

The consequences were sharpened by the Environmental Quality (Amendment) Act 2024 (Act A1712), which came into operation on 7 July 2024 (the amendment received Royal Assent on 27 May 2024 and was gazetted on 6 June 2024, with commencement appointed by the Minister). Its terms are now reflected in the Attorney General’s Chambers’ consolidated reprint of Act 127.

Act A1712 substituted a wholly new Section 34A(8). Under the current wording, any person who contravenes Section 34A — such as carrying out a prescribed activity without an approved EIA — “shall, on conviction, be punished with imprisonment for a term not exceeding five years and shall also be liable to a fine of not less than one hundred thousand ringgit and not exceeding one million ringgit.” Two things changed from the pre-amendment law: the penalty is no longer in the alternative — imprisonment of up to five years is now mandatory and is imposed together with a fine of RM100,000 to RM1,000,000, not as a fine-or-jail choice; and the current Section 34A(8) contains no continuing/daily fine. (Daily continuing-offence fines still appear elsewhere in the Act, but not in Section 34A.)

Item	Position
Governing provision	Section 34A, Environmental Quality Act 1974 (Act 127)
Amending Act	Environmental Quality (Amendment) Act 2024 (Act A1712), in force 7 July 2024
Imprisonment (current, mandatory)	Up to 5 years
Fine (current, in addition to imprisonment)	RM100,000 – RM1,000,000
Structure	Conjunctive — imprisonment and fine (no longer fine-or-jail alternative); no daily continuing fine under s.34A

For many projects, the practical exposure is not only the fine but the risk of a stop-work order on a project built on unapproved ground.

What’s next

If you are scoping a project in Malaysia, the practical checklist is short but unforgiving:

• Screen first. Match your exact activity and threshold against the First and Second Schedules of the 2015 Order before you commit budget.
• Appoint a registered consultant early and bring the DOE into the conversation at project-identification stage, not after the design is frozen.
• Budget the public display stage into your programme if you are a Second Schedule activity — public comment is a stage, not a formality.
• Treat the approval conditions as live obligations through construction and operation, with evidence ready for the DOE.

Because subsidiary legislation and guidelines are updated periodically, confirm the exact schedule entry and threshold for your specific activity against the current 2015 Order before relying on it for a live project — your specific activity threshold is the detail that decides everything.