This paper deals with the current growing interest concerning the use of stochastic techniques for electromagnetic compatability (EMC) issues. Various methods allow to face this problem: obviously, we may focus on the Monte Carlo (MC) formalism but other techniques have been implemented more recently (the unscented transform, UT, or stochastic collocation, SC, for instance). The aim of this work is to solve a stochastic electromagnetic compatibility problem (transmission line) with the UT and SC techniques and to face them with the reference MC results.