Term: Standardized Language Profile

A Standardized Language Profile (SLP) is a uniform grading system used by government and military organizations such as NATO (via STANAG 6001) to formally classify an individual’s fluency across four core linguistic skills.

The language proficiency skills are broken down into six levels 0 – 5. In general terms, skills may be defined as follows:
Level 0 – No proficiency
Level 1 – Survival
Level 2 – Functional
Level 3 – Professional
Level 4 – Expert
Level 5 – Highly-articulate native