Sigma Tau was an engineering honor society.[1] [2] In 1974, it merged with Tau Beta Pi, the oldest engineering honor society and the second oldest collegiate honor society in the United States. As part of the merger, Tau Beta Pi absorbed twelve Sigma Tau chapters into its existing chapters located on the same campuses. Tau Beta Pi re-chartered 22 Sigma Tau chapters at campuses where it did not exist.[3] [4]
In the following chapter list, inactive chapters and institutions are indicated in italics.[5]
| Chapter | Charter date and range | Institution | Location | Status | References | |
|---|---|---|---|---|---|---|
| Alpha | – January 1, 1974 | Lincoln, Nebraska | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Beta | – March 26, 1912 | Iowa City, Iowa | Inactve | [6] | ||
| Gamma | – January 1, 1974 | Philadelphia, Pennsylvania | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | [7] | ||
| Delta (First) | – April 22, 1916 | University of South Dakota | Vermillion, South Dakota | Inactive, Reissued | ||
| Delta (Second) | – January 1, 1974 | South Dakota State University | Brookings, South Dakota | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | [8] | |
| Epsilon | – January 1, 1974 | Kansas State University | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Zeta | – January 1, 1974 | Oregon State University | Corvallis, Oregon | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Eta | – January 1, 1974 | Washington State University | Pullman, Washington | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Theta | – before 1974 | University of Illinois Urbana-Champaign | Urbana, Illinois | Inactive | [9] | |
| Iota | – January 1, 1974 | University of Colorado Boulder | Boulder, Colorado | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Kappa | – January 1, 1974 | Pennsylvania State University | State College, Pennsylvania | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Lambda | – January 1, 1974 | University of Kansas | Lawrence, Kansas | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | [10] | |
| Mu | – January 1, 1974 | University of Oklahoma | Norman, Oklahoma | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Nu | – January 1, 1974 | Swarthmore College | Swarthmore, Pennsylvania | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Xi | – January 1, 1974 | George Washington University | Washington, D.C. | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Omicron | – January 1, 1974 | University of Louisville | Louisville, Kentucky | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Pi | – January 1, 1974 | University of North Dakota | Grand Forks, North Dakota | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Rho | – January 1, 1974 | University of Idaho | Moscow, Idaho | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Sigma | – January 1, 1974 | Oklahoma State University | Stillwater, Oklahoma | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Tau | – January 1, 1974 | South Dakota School of Mines and Technology | Rapid City, South Dakota | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Upsilon | – January 1, 1974 | University of Florida | Gainesville, FL | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Phi | – January 1, 1974 | University of Akron | Akron, OH | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Chi | – January 1, 1974 | University of New Mexico | Albuquerque, NM | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Psi | – January 1, 1974 | University of Pittsburgh | Pittsburgh, PA | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Omega | – January 1, 1974 | University of Wyoming | Laramie, WY | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Alpha Alpha | – January 1, 1974 | Colorado State University | Fort Collins, CO | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | ||
| Alpha Beta | – January 1, 1974 | Dallas, TX | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Gamma | – January 1, 1974 | Las Cruces, NM | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Delta | – January 1, 1974 | Logan, UT | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Epsilon | – January 1, 1974 | Reno, NV | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Zeta | – January 1, 1974 | Houston, TX | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Eta | – January 1, 1974 | Kingsville, TX | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Theta | – January 1, 1974 | Youngstown, OH | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Iota | – January 1, 1974 | Peoria, IL | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Kappa | – January 1, 1974 | Fresno, CA | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Lambda | – January 1, 1974 | Prairie View, TX | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Alpha Mu | – January 1, 1974 | Memphis, TN | Merged (Greek, Ancient (to 1453);: ΤΒΠ) | |||
| Omega Alpha | – January 1, 1974 | General Chapter | n/a | Inactive | [11] |