NAT is a UK charity dedicated to transforming society's response to HIV. The document discusses chemsex, which is the use of drugs to enhance sex, and NAT's efforts to address policy issues around chemsex. NAT has brought together different sectors to discuss best practices, advocated for improved and integrated services, and seen some early impacts like increased attention on chemsex in prevention programs. However, there are still policy debates around issues like funding, inconsistent screening and referrals, limited specialized services, and a mismatch between open access sexual health services and locality-based drug services. Possible solutions discussed include consistent screening, cross-boundary services, improved data collection, and specialized and generic drug services working together.