The North Shields-based firm has been awarded ISO 14001 for environmental management and OHSAS 18001 for health and safety management in the workplace.

Last September it achieved ISO 9001 quality management accreditation.

"When we started looking at the other two awards in February we had a lot of good practice in place already," said marketing manager John Conway.

"The printing industry is coming under increasing pressure to be more efficient and the three awards underline Potts' commitment to sustained quality management."

Founded in 1875, Potts specialises in commercial printing and bespoke carton packaging. The 7m turn-over firm employs 100 staff.