• low lead petrol (0.15 gm/l) was supplied in four metros since June 1994 (leaded petrol has 0.56 gm/l of lead)

• ULP ,'I/as supplied to four metros since April 1, 1995 .low lead petrol was supplied to the Taj trapezium from September 1,1995

• countrywide low lead petrol to be supplied by December 1996

• ULP to be supplied to all state capitals and union territories by 1998

• ULP to be supplied to the entire country by 1999-2000.