Theo website chính thức của Liên minh Latin, việc kết nạp thành viên tuân theo các tiêu chuẩn sau:

• Ngôn ngữ:
  • Ngôn ngữ chính thức có nguồn gốc từ tiếng Latin
  • Latin-derived language used in education
  • Latin-derived language commonly used in the mass media or in daily life
• Ngôn ngữ/Văn hóa:
  • Existence of significant literature in a Latin-derived language
  • Press và publication in Latin-derived language
  • Television with a strong proportion of the programming in a Latin-derived language
  • Radio widely broadcast in a Latin-derived language
• Văn hóa:
  • Direct or indirect inheritance of the legacy of Ancient Rome, to which the state remains faithful and which it perpetuates mainly through the education of Latin
  • Cultural education of Latin-derived foreign languages
  • Exchange programmes with other Latin countries
  • Societal organization, particularly in the legal plane, based on respect for fundamental liberties, the general principles of human rights và democracy, tolerance and freedom of religion