Health and Welfare Canada, Safety Code 6 provides the guidelines for assessment of the "Limits of Human Exposure to Radiofrequency Electromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz". Because of our involvement in many high power broadcasting sites in close proximity to major population centres, we have been at the forefront in the theoretical assessment and measurement of high density RF energy and determination of compliance with Safety Code 6. We are fully equipped to carry out calculations to predict levels of RF energy from existing or proposed transmitter sites and to carry out site measurement surveys in accordance with the exposure limit standards set by the appropriate regulatory authority.