RT @PennLive: Unnecessary regulations will harm Pennsylvania aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| RT @PennLive: Unnecessary regulations will harm Pennsylvania jobs, and do nothing to improve air quality: PennLive letters https://t.co/av5… Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail