ITM issued BT with Bronze Icarus accreditation status for "commitment, measurement and targeted reduction of emissions" from its business travel and meetings programme.
The Icarus advisory board, which comprises 11 travel buyers, consultants and academics, said BT had made "great use of conferencing and collaboration tools to reduce the need for employees to travel".
Mark Avery, chairman of Project Icarus, which was established in 2006 to provide resources for responsible corporate travel and meetings, said BT's efforts demonstrated that it was possible for large corporations to target reductions in emissions generated by travel.
"It's easy to say that BT should be focusing its efforts on encouraging people to fly less and use alternative means because that's the role of its communications products, but it's a big business and needs to work face to face with its customers," said Avery. "It's encouraging employees to make informed decisions about their travel and help reduce emissions by using conference calls instead, which shows that it is genuinely committed to working smarter."
BT programme manager for sustainability and climate change Gabrielle Giner said: "It's fantastic for BT to be recognised at broad industry level for our ambitious, thorough and international approach to tackling environment and climate change issues. To have our travel and meetings emission reduction strategy approved by industry experts is important to us."