The Eligibility Criteria and Readiness Criteria in version 6 give certain very specific minimum requirements as prerequisites to HRT or sex reassignment surgery (SRS). Section Nine covers "The Real-life Experience," during which individuals seeking hormonal and other treatments are expected to begin transitioning publicly to their preferred gender role. Section Twelve, titled "Genital Surgery," deals directly with all concerns about sex reassignment surgery. It includes six "Eligibility Criteria" and two "Readiness Criteria", which are intended to be used by professionals for both diagnosis and guidance before providing patients "letters of recommendation." For this and other reasons, the WPATH-SOC is a controversial and often maligned document among patients seeking medical intervention (hormones, and/or surgery), who state that their legally protected right to proper medical care and treatment is unjustly and unduly withheld or even denied based on the SOC.