In July 1994, an International Conference cum Exhibition on Trenchless Construction – Towards Trenchless Cities was organized by The Institution of Engineers, Malaysia (IEM). The conference was held in Seremban in the State of Negeri Sembilan. In February 2000, a Seminar on ‘Design, Construction, Operation and other Aspects of Tunnels’ was again organized by the IEM. The seminar was held in Petaling Jaya in the State of Selangor. It was a very important event as The International Tunnelling Association (ITA) also held its executive council meeting at the same venue as the Seminar. The Tunnelling and Underground Space Technical Division of the IEM was officially formed at the seminar with the objective ‘to undertake activities related to the promotion and advancement of the science and engineering of tunnels and underground space technologies. ’ Tunnelling activity has been increasing all over the world and the last three decades has seen great progress being made in the construction of tunnels for various purposes. Malaysia is no exception, starting from the days of railway tunnel construction way back in the 1900s tunneling activity has been steadily increasing with tunnels associated with water supply and power generation leading the way in1960s and from the 1970s onwards roads and highway tunnels were built with KL-Karak tunnel as pioneer. These tunnels by and large are constructed using drill and blast method. The drill and blast method is still by far the most commonly used method in the tunnelling works in Malaysia. The use of TBMs started with the Sungei Kelinchi’s transfer tunnel project in 1995 in Negeri Sembilan. The TBMs were also used in late 1990s in the Kuala Lumpur LRT tunnels construction. TBMs are also being used in the sewerage project in Kuala Lumpur in early 2000s.