The technical, industrial and commercial scenario of the country has also changed significantly. There are now more number of standards, specifications, accrediting bodies and also more central, state and local laws. Even organizations much smaller in size and scope than Railways appoint persons expert in techno-commercial areas like taxation, port clearance, law and accountancy. The officers manning the cadre will be encouraged to take special interest and become specialist in one of the areas of scientific materials management, some of which are given below-