Article 23b 1.

benchmarks designated as critical by an implementing act adopted pursuant to point (a) or (c) of Article 20(1);

benchmarks based on the contribution of input data if their cessation or wind-down would significantly disrupt the functioning of financial markets in the Union; and

third-country benchmarks if their cessation or wind-down would significantly disrupt the functioning of financial markets in the Union or pose a systemic risk to the financial system in the Union.