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Study Guide: UPSC GS Paper III: Environment - Environmental Laws, EPA, WPA, FCA, PESA, EIA Process
Source: https://www.fatskills.com/upsc-civil-services-examination-cse/chapter/upsc-gs-paper-iii-environment-environmental-laws-epa-wpa-fca-pesa-eia-process

UPSC GS Paper III: Environment - Environmental Laws, EPA, WPA, FCA, PESA, EIA Process

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~7 min read

Must?Know

  • Environmental Protection Act (EPA), 1986 – enacted under Article 253 to implement 1972 Stockholm Conference resolutions; provides umbrella framework for regulating pollutants and coordinating central/state agencies.
  • EPA, 1986 empowers Centre to appoint officers, issue directions, close industries (Section 5), and establish environmental laboratories (Section 11).
  • Water (Prevention and Control of Pollution) Act, 1974 – established Central and State Pollution Control Boards (CPCB and SPCBs); predates EPA and focuses exclusively on water pollution.
  • SPCBs derive authority under Section 17 of WPA, 1974 to take samples of effluents; refusal to allow sampling is punishable under Section 25.
  • Air (Prevention and Control of Pollution) Act, 1981 – expanded regulatory scope to air pollution; created State Boards for Air Pollution Control under existing SPCBs.
  • Forest (Conservation) Act, 1980 – restricts de-reservation of forests or use of forest land for non-forest purposes without prior Central Government approval.
  • FCA, 1980 was amended in 1988 to include "non-forest activities" like clearing for road construction, mining, or cultivation under restricted use.
  • Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006 – recognizes individual and community rights over forest land; conflicts with FCA implementation in some regions.
  • Panchayats (Extension to Scheduled Areas) Act, 1996 (PESA) – mandates consultation with Gram Sabhas for land acquisition, minor forest produce, and resource management in Scheduled Areas.
  • PESA applies to 10 states with Scheduled Areas: Andhra Pradesh, Telangana, Jharkhand, Chhattisgarh, Gujarat, Himachal Pradesh, Madhya Pradesh, Maharashtra, Odisha, Rajasthan.
  • EIA Notification, 2006 – issued under EPA, 1986; categorizes projects into ‘A’ (central appraisal) and ‘B’ (state-level appraisal); revised in 2020 (draft).
  • EIA process includes stages: screening, scoping, public consultation (except for Category B2), appraisal, and monitoring.
  • Public consultation under EIA is not required for Category B2 projects (e.g., small construction, inland waterways) as per 2006 Notification.
  • MoEFCC (Ministry of Environment, Forest and Climate Change) is the nodal agency for granting environmental clearances under EIA.
  • National Green Tribunal (NGT) established in 2010 under NGT Act, 2010; handles cases under EPA, WPA, Air Act, FCA, and EIA; guided by principles of sustainable development.
  • Vellore Citizens Welfare Forum v. Union of India (1996) – Supreme Court recognized "Polluter Pays Principle" as part of environmental law under Article 21.
  • M.C. Mehta v. Union of India (1987) – Oleum Gas Leak case; led to development of "Absolute Liability Principle" for hazardous industries.
  • Samatha v. State of Andhra Pradesh (1997) – SC held that tribal land in Scheduled Areas cannot be leased to non-tribals; reinforces PESA and Fifth Schedule.
  • Narmada Bachao Andolan v. Union of India (2000) – upheld dam construction but emphasized rehabilitation and environmental safeguards under EIA norms.
  • Goa Foundation v. MoEFCC (2019) – NGT quashed environmental clearance for a project due to flawed public consultation process.
  • EIA Draft Notification, 2020 proposed post-facto clearance for violations, reduced public consultation time from 30 to 20 days, and exempted certain projects – not yet notified.
  • FCA, 1980 does not apply to forests outside recorded forest areas; thus, diversion of deemed forests or revenue land not protected unless notified.
  • Coastal Regulation Zone (CRZ) Notification, 2011 – issued under EPA; classifies coastal areas into CRZ-I to IV; CRZ-I (ecologically sensitive) prohibits most construction.
  • Biological Diversity Act, 2002 – establishes National Biodiversity Authority (NBA), State Biodiversity Boards (SBBs), and Biodiversity Management Committees (BMCs) at local level.

Difficulty Level

Intermediate – requires understanding of overlapping laws, judicial interpretations, and procedural nuances in environmental clearances.

Common UPSC Traps

Trap: PESA gives Gram Sabhas power to approve mining projects in Scheduled Areas – Fact: PESA mandates consultation with Gram Sabha for land acquisition and mineral exploration, but final approval rests with state/Central government; confirmed in Orissa Mining Corporation v. Ministry of Environment & Forests (2013).

Trap: EIA process is statutory and immune to judicial review – Fact: EIA clearances are subject to judicial review on grounds of malafide, procedural lapse, or violation of public trust doctrine; see Lafarge Umiam Mining case (2013).

Trap: Forest Conservation Act, 1980 applies to all forested land in India – Fact: FCA applies only to land officially recorded as 'forest', whether reserved, protected, or deemed; not automatically applicable to all green cover (see Godavarman case interpretation).

Trap: NGT replaces civil courts in environmental disputes – Fact: NGT does not bar jurisdiction of High Courts or Supreme Court; it is an alternative quasi-judicial body under Section 14 of NGT Act, 2010.

Practice MCQs

Question: Which of the following Acts was enacted specifically to implement the decisions of the United Nations Conference on the Human Environment (Stockholm, 1972)?
A) Water (Prevention and Control of Pollution) Act, 1974
B) Air (Prevention and Control of Pollution) Act, 1981
C) Forest (Conservation) Act, 1980
D) Environment (Protection) Act, 1986
Answer: D
Explanation: EPA, 1986 was enacted under Article 253 to implement India’s commitments at the 1972 Stockholm Conference.
Why others fail: A was enacted before EPA and focused only on water pollution, not international obligations.

Question: Under which Act is the Central Pollution Control Board (CPCB) originally constituted?
A) Environment (Protection) Act, 1986
B) Air (Prevention and Control of Pollution) Act, 1981
C) Water (Prevention and Control of Pollution) Act, 1974
D) National Green Tribunal Act, 2010
Answer: C
Explanation: CPCB was established in 1974 under Section 3 of the Water Act; later entrusted with functions under Air Act and EPA.
Why others fail: A created MoEFCC’s powers but not CPCB; CPCB predates EPA.

Question: The requirement for prior approval of the Central Government for diverting forest land for non-forest use is mandated under:
A) Indian Forest Act, 1927
B) Forest (Conservation) Act, 1980
C) Panchayats (Extension to Scheduled Areas) Act, 1996
D) Scheduled Tribes (Recognition of Forest Rights) Act, 2006
Answer: B
Explanation: FCA, 1980 introduced central oversight on forest land diversion; overrides state autonomy in forest management.
Why others fail: A governs forest produce and offenses but lacks diversion control; FRA, 2006 recognizes rights but does not regulate land diversion.

Question: In which of the following cases did the Supreme Court recognize the ‘Polluter Pays Principle’ as part of environmental jurisprudence?
A) MC Mehta v. Union of India (1987)
B) Vellore Citizens Welfare Forum v. Union of India (1996)
C) Rural Litigation and Entitlement Kendra v. State of Uttar Pradesh (1985)
D) Narmada Bachao Andolan v. Union of India (2000)
Answer: B
Explanation: Vellore Citizens case explicitly invoked Polluter Pays Principle under Article 21 and sustainable development.
Why others fail: A established Absolute Liability; C was the first public interest litigation on environment but did not articulate Polluter Pays.

Question: Which of the following is NOT a stage in the EIA process as per the 2006 Notification?
A) Scoping
B) Screening
C) Environmental Audit
D) Public Consultation
Answer: C
Explanation: Environmental audit is part of post-clearance monitoring, not a formal stage in EIA process.
Why others fail: A, B, D are explicitly listed in EIA Notification, 2006 as procedural stages.

Question: The Panchayats (Extension to Scheduled Areas) Act, 1996 applies to areas falling under:
A) Fifth Schedule of the Constitution
B) Sixth Schedule of the Constitution
C) Article 371 of the Constitution
D) Tenth Schedule of the Constitution
Answer: A
Explanation: PESA extends Part IX provisions to areas under Fifth Schedule; Sixth Schedule areas have autonomous councils.
Why others fail: B applies to Northeastern states with tribal councils; PESA does not apply there.

Question: The National Green Tribunal Act, 2010 derives its authority from:
A) Article 21 and Directive Principles of State Policy
B) Article 300A and right to property
C) Article 226 and High Court powers
D) Article 136 and Supreme Court appellate jurisdiction
Answer: A
Explanation: NGT Act is based on right to healthy environment as part of Article 21 and DPSP (Article 48A, 51A(g)).
Why others fail: B, C, D relate to judicial hierarchy or property rights, not environmental justice.

Last?Minute Revision

  • EPA, 1986 enacted in June 1986, effective November 1986 – post-Bhopal gas tragedy.
  • WPA, 1974 came into force May 1974 – first major environmental law.
  • Air Act, 1981 passed in March 1981 – response to rising air pollution.
  • FCA, 1980 enacted in September 1980 – during Indira Gandhi’s tenure.
  • FRA, 2006 passed in December 2006 – recognizes forest rights of STs and OTFDs.
  • PESA, 1996 enacted December 1996 – extends Panchayati Raj to Scheduled Areas.
  • EIA Notification first issued in 1994, replaced by 2006 version.
  • EIA Draft 2020 proposed 50% reduction in public hearing duration – from 30 to 20 days.
  • CRZ Notification, 2011 replaced 1991 version – based on Ramesh Panel.
  • NGT established October 18, 2010 – principal bench in New Delhi.
  • CPCB established 1974 – under WPA.
  • SPCBs exist in 29 states and 6 UTs – UTs covered by CPCB.
  • Godavarman Case (1996) – SC expanded definition of ‘forest’ to include all green cover.
  • MoEFCC stands for Ministry of Environment, Forest and Climate Change – renamed 2014.
  • Category A projects – environmental clearance by Expert Appraisal Committee (EAC) at central level.
  • Category B projects – cleared by State Level Environment Impact Assessment Authority (SEIAA).
  • Public hearing not required for B2 projects – e.g., housing <20,000 sqm.
  • Vellore Citizens case (1996) – introduced Polluter Pays Principle.
  • Samatha v. Andhra Pradesh (1997) – prohibits leasing tribal land to non-tribals.
  • Narmada Bachao Andolan (2000) – upheld project with R&R conditions.
  • Lafarge Umiam case (2013) – NGT canceled clearance due to forest diversion without FCA approval.
  • Orissa Mining Corporation v. MoEF (2013) – Gram Sabha consent required under FRA for mining in forest land.
  • EIA process begins with screening – determines if EIA is required.
  • Biological Diversity Act, 2002 – implemented with Nagoya Protocol (2012).
  • Stockholm Conference – 1972; India’s first major environmental policy response.