Broadcast regulator TRAI will tomorrow issue the final notification on CAS detailing the all-important channel pricing mechanism under the new regime.According to an official, TRAI will come out with detailed regulations on pricing formula of individual channels which will be applicable in CAS-notified areas in Delhi, Mumbai and Kolkata as and when the system is rolled out."The final guidelines on CAS will be out tomorrow and will provide details on all the pending issues regarding the new cable delivery system," the official said.TRAI has already issued quality of service standards guidelines to be observed by cable operators and multi-service providers (MSOs) in CAS areas with effect from October 1 this year. The regulations specify standards pertaining to connection, disconnection, transfer and shifting of cable services, set-top boxes, complaint redressal, billing procedure and positioning of channels.The issues which would be decided by tomorrow's guidelines include fixing prices of pay and free-to-air (FTA) channels. It needs to be seen whether TRAI will give a go-ahead to the prices submitted by various pay channels or decide to go in for a maximum retail price (MRP) in case it finds them too high.