67. Where fossil fuel is used for at least 50% of total heat input in the fuel burning equipment in an electricity generating station that has a rated electricity generating capacity greater than 25 MW, that is situated in the area described in Schedule J and that supplies electricity to a public distribution network, the applicable limits for nitrogen oxide emissions are, as of 30 June 2012, the limits prescribed by the first paragraph of section 65 for a rated heat capacity greater than 30 MW.