How to read a SIC Code?

Reading a SIC CodeThe first two digits of the code identify the major industry group, the third digit identifies the industry group and the fourth digit identifies the industry.

For example: 36 ELECTRONIC & OTHER ELECTRIC EQUIPTMENT 367 ELECTRONIC COMPONENTS & ACCESSORIES 3672 PRINTED CIRCUIT BOARDS Note: The digit "9" is used in the third or fourth digit position of the classification code to designate miscellaneous industries not elsewhere classified (NEC). These miscellaneous classifications are not comprised of homogeneous primary activity groups. They are grouped together and treated as a seperate industry in order to retain the homogeneity of the other industries in the group.