SC Strikes Down Maharashtra's Methanol Denaturing Rules

Methanol (Methyl Alcohol) is a highly toxic but essential industrial chemical used in paints, resins, pharmaceuticals, and disinfectants.
Following a severe 1991 hooch tragedy in Mumbai, Maharashtra amended its Poisons Rules in 2011 to introduce Rules 18A and 18B of the Maharashtra Poisons Rules, 1972.
Rule 18A(1): Restricted sale of methanol only to holders of a 'Form A' licence.
Rule 18A(2): Mandated mixing a colourant (methylene carmine) and a bitterant (denatonium saccharide) into methanol before sale to non-drug manufacturers, to prevent diversion into illicit liquor.
Rule 18B: Permitted confiscation of methanol found without a Form A licence.

The Court declared the rules unconstitutional for violating:
Article 14 (Right to Equality): The rules were "manifestly arbitrary" and lacked a rational nexus with the objective sought to be achieved.
Article 19(1)(g) (Freedom of Trade and Profession): Mandatory denaturing imposed an unreasonable and continuous burden on legitimate industries (paints, laboratory chemicals), irreparably damaging product quality.
Doctrine of Proportionality (as laid down in K.S. Puttaswamy v. Union of India, 2017) was applied:
Preventing hooch tragedies is a legitimate state aim, but the restrictions were neither suitable nor necessary.
Cosmetic changes (colour/bitterness) fail to address root causes of illicit liquor deaths — pilferage, corruption, and illegal diversion in unregulated fields.

The Court observed that forced temperance and complete alcohol bans often fail, driving the trade underground and leading to five evils:

The Court cited Gujarat, which despite strict prohibition since 1960, has witnessed multiple mass hooch tragedies.

Under Synthetics & Chemicals Ltd. (1990), the Union regulated industrial alcohol (Entry 52, Union List), while States could regulate only potable liquor (Entry 8, State List).

In October 2024, a 9-judge Constitution Bench by an 8:1 majority overruled the 1990 judgment.
Held that 'intoxicating liquor' in Entry 8 of List II broadly includes industrial alcohol (rectified spirit, extra-neutral alcohol, denatured spirit like methanol), as these can be misused to the detriment of public health.
Consequently, States have exclusive legislative competence to regulate, control, and tax industrial alcohol to prevent its conversion into illicit liquor.

Methanol's sale and possession are strictly monitored as a poison.
The Poisons Act, 1919 is a Central Act that empowers State Governments to frame their own rules regulating possession and sale of specified poisons (e.g., Maharashtra Poisons Rules).
States enforce licensing, transport under Excise supervision, and stock accountability.

Methanol (Quality Control) Order, 2019: Issued under the BIS Act, 2016, mandates compulsory use of the Standard Mark; methanol must conform to IS 517:1986. BIS and State District Industries Centres enforce compliance.

Under the National Green Hydrogen Mission, the MNRE (February 2026) notified standards for 'Green Methanol'.
To qualify as 'Green', methanol must have total non-biogenic GHG emissions of not more than 0.44 kg CO₂ equivalent per kg of methanol.
Aim: decarbonize heavy industries and shipping, and position India as an exporter of green fuels.

Illustrates the Doctrine of Proportionality in action against arbitrary state action.
Highlights federalism debates over industrial alcohol (Centre-State legislative competence).
Connects public health policy (hooch tragedies, prohibition) with constitutional rights (Articles 14, 19, 21).
Links traditional regulation with emerging clean energy policy (green methanol).