Acoustics Certificates Ltd, led by Bob Russell, is an acoustical engineering firm based in Tauranga, New Zealand, specialising in building soundproofing and noise compliance certifications across the Bay of Plenty and Waikato regions. With over 30 years of experience, they offer services such as residential building acoustic design certificates for road, railway, and airport noise; building soundproofing tests for building code compliance; and environmental impact noise modelling for surveyors and planners.