State Tax Headlines Tax Headlines Oregon Extends Interstate Broadcaster Apportionment Provisions April 12, 2018 CCHTaxGroup no comments Oregon has extended its current interstate broadcaster apportionment provisions for two years. The provisions were set to expire January 1, 2017. S.B. 1523, Laws 2018, effective on the 91st day following adjournment of the 2018 legislative session Login to read more tax news on CCH® AnswerConnect or CCH® Intelliconnect®. Not a subscriber? Sign up for a free trial or contact us for a representative.