Broadly, a chapter is an organization of members of the fraternity attached to an institution or geographic location which has received a charter authorizing it to operate as the local unit of Lambda Chi Alpha. A colony is a sigma alpha iota ritual group which is being organized or reorganized and has not yet met the standards for a charter. Lambda Chi Alpha chapters are known as subordinate Zetas, or simply Zetas.
Thus, the Alpha chapter at Boston is referred to as Alpha Zeta. Zetas are identified by Greek letters in a unique “scrambled alphabet” naming scheme. At the fraternity’s inception, founder Warren A. Cole assigned Greek letters to petitioning groups that had not yet been chartered. Predictably, not all of these groups were chartered.
As a result, the first seven chapters were designated Α, Γ, Ε, Ζ, Ι, Λ, and Β, in that order. Therefore, the chapters are named in the order: Α, Γ, Ε, Ζ, Ι, Λ, Β, Σ, Φ, Δ, Π, Ο, Μ, Τ, Η, Θ, Υ, Ξ, Χ, Ω, Κ, Ν, Ρ, Ψ. When Theta Kappa Nu merged with Lambda Chi Alpha in 1939, former Theta Kappa Nu chapters were assigned chapter designations prefixed with Θ, Κ, or Ν. 1905 and Loyal Collegiate Associates est. 1900 and Alpha Brotherhood of Sigma Phi Delta est. 1907 and Theta Lambda Phi est. 1916 and Alpha Tau Epsilon est.