The document describes the ILR (Interagency Language Roundtable) scale for assessing language proficiency. The ILR scale has 6 levels ranging from no proficiency (Level 0) to functionally native proficiency (Level 5). Federal job seekers need a minimum of Level 3 proficiency. The ILR levels are determined by factors such as mode of discourse, vocabulary, grammar accuracy, listening comprehension, pronunciation, and comprehensibility.