For info Aussies along with ICAO have implemented following changes:
Precision Approach and Landing Operations: Instrument approaches and landings using precision azimuth and glide path guidance with minima as determined by the category of operation. Categories of Precision Approach and Landing Operations are:
1.
---- Effective thru 01 Jun 2011: ----
Category I (CAT I) operation. A precision instrument approach and landing with a decision height not lower than 200 ft and a visibility not less than 800m, or a RVR less than 550m.
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---- Effective 02 Jun 2011: ----
Category I (CAT I) operation. A precision instrument approach and landing with a decision height not lower than 200 ft and either a visibility not less than 800m or a runway visual range not less than 550m.
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2.
---- Effective thru 01 Jun 2011: ----
Category II (CAT II) operation. A precision instrument approach and landing with a decision height lower than 200 ft but not lower than 100 ft, and a runway visual range not less than 350m.
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---- Effective 02 Jun 2011: ----
Category II (CAT II) operation. A precision instrument approach and landing with a decision height lower than 200 ft but not lower than 100 ft, and a runway visual range not less than 300m.
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3.
---- Effective thru 01 Jun 2011: ----
Category IIIA (CAT IIIA) operation. A precision instrument approach and landing with a decision height lower than 100 ft, or no decision height and a runway visual range not less than 200m.
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---- Effective 02 Jun 2011: ----
Category IIIA (CAT IIIA) operation. A precision instrument approach and landing with a decision height lower than 100 ft, or no decision height, and a runway visual range not less than 175m.
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4.
---- Effective thru 01 Jun 2011: ----
Category IIIB (CAT IIIB) operation. A precision instrument approach and landing with a decision height lower than 50 ft, or no decision height and a runway visual range not less than 50m.
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---- Effective 02 Jun 2011: ----
Category IIIB (CAT IIIB) operation. A precision instrument approach and landing with a decision height lower than 50 ft, or no decision height, and a runway visual range less than 175m but not less than 50m.
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5.
Category IIIC (CAT IIIC) operation. A precision instrument approach and landing with no decision height no runway visual range limitations.
EU OPS however maintains CAT III A RVR of 200 M. Well, nobody said it's gonna be easy to persuade Europeans of a way rest of the world follows.
