Free TV Australia’s Operational Practices 24, 29 and 36 provide information on the basic requirements for the delivery of television commercials to Australian television broadcasters. Operational Practice 48 was developed to assist in addressing the issues surrounding the problem of advertisements sounding louder than adjacent programs. OP 24 - DELIVERY OF COMMERCIALS FOR PAL ANALOG SERVICES Issue 3 - January 2007 Related PDF document OP 29 - DIGITAL DELIVERY FORMATS FOR COMMERCIALS Issue 3 - January 2007 Related PDF document OP 36 - SDTV AND HDTV COMMERCIALS: VIDEOTAPE DELIVERY Issue 3 - January 2007 Related PDF document OP 48 - AUDIO LEVELS AND LOUDNESS Issue 2 - January 2007 Related PDF document OP 53 - FILE DELIVERY FORMAT EVALUATION AND ASSESSMENT (NOT BROADCAST) Issue 3 - February 2010 Related PDF document OP 55 - DVD-VIDEO ENCODING FOR EVALUATION AND ASSESSMENT (NOT BROADCAST) Issue 1 - September 2008 Related PDF document Click here for more information about Operational Practices.