 The groups include the Defence Industry Group, the Deming SIG, the Engineering SIG, the Integrated Management SIG, the Medical Technologies SIG, the Nuclear SIG and the Pharmaceutical Quality Group.The oldest and most prolific of the groups is the PQG which has published three pharmaceutical quality standards (PS 9000, PS 9001, PS 9004) and 11 monographs.Formed in 1984, the International Register of Certificated Auditors (IRCA) is the world's original and largest international certification body for auditors of management systems.