The International Association of Safety Professionals is a non-profit membership organization providing training, consultative services, and third-party certifications that validate knowledge, skills and abilities in the area of workplace safety. The National Association of Safety Professionals (NASP) is the United States Division of the non-profit International Association of Safety Professionals (IASP). The NASP Advanced Diploma in Occupational Safety & Health is a course that Safety Professionals take up in order to expand their understanding of Workplace Safety. It helps you take your employees and company above and beyond OSHA Standards.