The principal objective of the Convention on Nuclear Safety is the provision of a series of safety guidelines to ensure that the nuclear power plants of participating states are operated safely and securely. Specifically, it is recommended that states develop comprehensive safety, licensing, inspection, and regulatory framework for nuclear installations within their national borders. The convention additionally recommends that states uphold certain guidelines surrounding the design, construction, and operational use of nuclear installations. Such measures are considered necessary to maintain a robust level of protection to prevent radiological leaks, the rapid build-up of radioactive waste and other possible accidents. States are obliged to report regularly on their progress to implement the convention and if they are unable to guarantee the safety of their nuclear installations they are instructed to shut down their reactors until suitable safety provisions are made. The convention currently has 78 State Parties, all of which have one or more nuclear site which has obtained a level of critically in its reactor core.