In this work we present the Correlation Transverse Wave Formulation (CTWF) method for direct computation of the auto-and cross correlation functions (ACFs and CCFs) of stationary stochastic electromagnetic fields. The transverse wave formulation, in performing a modal expansion of the electromagnetic fields in the homogeneous parts of the calculation domain and solving the near field continuity on both sides of the circuit surfaces, provides a direct derivation of the ACFs and CCFs without hypothesis on the structure of radiated fields. Index Terms-Stochastic electromagnetic fields, electromagnetic interference, noisy electromagnetic fields, correlation transverse wave formulation.