Texas Common Course Numbering System

Effective July 10, 2019:  The following TCCNs have been approved and changed, but do not correctly appear in the Course Descriptions or Plans of Study throughout the 2019-20 Undergraduate Catalog.

TWU Course   TCCNS
BACT 1003 Microbiology BIOL 2420
BIOL 1113 Principles of Biology I BIOL 1406
BIOL 1123 Principles of Biology II BIOL 1407
BOT 2113 Plant Biology BIOL 1411
ZOOL 2013 Human Anatomy and Physiology I BIOL 2401

Texas Common Course Numbering System (TCCNS)

The Texas Common Course Numbering System is designed to aid students in the transfer of freshman and sophomore academic credit courses identified by institutions that are members of the TCCNS.

The common course number has a standardized four-letter prefix followed by a four-digit number. The four-letter prefix identifies the subject area. For example, ENGL represents English courses, while COSC represents computer science courses. The four-digit number identifies specific courses within the subject area. TCCNS numbers appear following TWU course numbers when applicable in this catalog. 

Each digit in the four-digit sequence gives additional information about the course. The first digit identifies the course as either freshman level (1) or sophomore level (2). The second digit identifies the number of semester credit hours students earn upon completing the course. Most often this digit will be a 1, 2, 3, or 4. The final two digits serve to establish the sequence in which courses are generally taken. Thus, French I - FREN 1311 is taken before French II - FREN 1312.

The current crosswalk between the TWU course number and respective title, and the Texas Common Course Number and title is provided on TWU's Texas Common Course Numbering System web site.