RISs benefit the industry by removing the need for companies to develop and maintain their own (company) standards in the areas covered by RISs. For the GB mainline operators and infrastructure managers, the Statement of National Regulatory Provisions (SNRP) and licences under the Railway Act 1993 require compliance with applicable RISs. If licence holders are unable to comply with a RIS, they may identify and use an equally effective alternative to achieve the purpose of the RIS, after consultation with those who are likely to be affected.