The promotion of language assessment literacy (LAL) among teachers and assessment developers has been deadly called and emphasized by professionals and scholars in the field of language assessment. In line with this urgent call for research, the present study sets out to investigate the EFL teachers' literacy assessment with the aim of bringing modifications for teacher education reforms. To meet the objectives of the study, a total of 200 EFL teachers (N=88, with a TEFL background and N=112, with a non-TEFL background) with B.A. (N=125) and M.A. (N= 75) degrees were selected through stratified random sampling at high schools of West Azerbaijan Province, Iran. The required data were gathered using Plake, Impara, and Fager's (1993) Teacher Assessment Literacy Scale (TALS). Hence, the participants' knowledge concerning components of assessment literacy (AL) was sought for. A multivariate analysis of variances (MANOVA) was run and the results, in general, revealed that the participants were not significantly familiar with assessment literacy principles and procedures. Specifically, the results indicated that EFL teachers with a TEFL background and those with a non-TEFL background differed in terms of their assessment literacy competence, especially in terms of their perceptions of AL components. The implications of the findings for teacher education programs, teacher educators and EFL teachers are discussed and some suggestions for further research are offered.