1 '-','A DASH IN A DAY CODE POSITION INDICATES NON-OPERATION ON THAT DAY'
2 'AP','ADVANCE PURCHASE EXCURSION FARE'
3 'CAD','CANADIAN DOLLARS'
5 'H','HIGHEST LEVEL OF FARE HAVING MORE THAN ONE SEASONAL LEVEL'
6 'J','THIRD LEVEL OF FARE HAVING MORE THAN THREE SEASONAL LEVELS'
7 'K','SECOND LEVEL OF A FARE HAVING MORE THAN TWO SEASONAL LEVELS'
8 'L','LOWEST LEVEL OF FARE HAVING MORE THAN ONE SEASONAL LEVEL'
10 'O','SECOND LEVEL OF A FARE HAVING MORE THAN TWO SEASONAL LEVELS'
13 'W','WHEN USED AS PART OF A FARE CLASS SUCH AS YW,INDICATES WEEKEND APPLICATION.'
14 'X','WHEN USED AS PART OF A FARE CLASS SUCH AS YX,INDICATES WEEKDAY APPLICATION.'
15 'U.S.','48 CONTIGUOUS STATES (NOT INCLUDING ALASKA AND HAWAII) UNLESS OTHERWISE NOTED.'