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RAS question

With reference to Sustainable Aviation Fuel (SAF) in India, consider the following statements: 1. SAF is a renewable aviation-grade hydrocarbon fuel chemically similar to ATF and fully compatible with existing aircraft engines. 2. The Bureau of Indian Standards specification IS 17081 specifically covers SAF blended with traditional Aviation Turbine Fuel. 3. The mandatory phase of CORSIA, the global market-based measure for international aviation, begins in 2027. Which of the statements given above are correct?

Correct answer: (D) 1, 2 and 3.

In India, Sustainable Aviation Fuel is a renewable aviation-grade hydrocarbon fuel compatible with existing aircraft engines, IS 17081 covers SAF blended with ATF, and CORSIA's mandatory phase begins in 2027.

  1. (A)

    1 and 2 only

  2. (B)

    2 and 3 only

  3. (C)

    1 and 3 only

  4. (D)

    1, 2 and 3

Explanation

All three statements are correct. The PIB release says SAF consists of specially processed aviation-grade hydrocarbons that are chemically similar to ATF and fully compatible with aircraft engines, so it does not change the basic nature, safety or performance of aviation fuel. It also records the BIS distinction: the amended ATF definition covers SAF co-processed with ATF as per IS 1571 in petroleum refineries, and SAF conforming to IS 17081 when blended with ATF and meeting IS 1571. On the climate-governance side, ICAO is implementing CORSIA for international aviation emissions, and its mandatory phase begins in 2027, requiring offsetting above a baseline level.

Why the other options are wrong

  • (A) Option A leaves out statement 3, although the PIB release states that CORSIA's mandatory phase begins in 2027.
  • (B) Option B leaves out statement 1, although the release describes SAF as aviation-grade hydrocarbons chemically similar to ATF and fully compatible with aircraft engines.
  • (C) Option C leaves out statement 2, although the release says SAF conforming to IS 17081 is blended with ATF while meeting IS 1571.

Concept

This tests the Environment and Ecology link between clean fuels, aviation decarbonisation and international climate mechanisms. RAS repeats such questions because they connect Indian regulatory updates with ICAO-led global obligations.

Source

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