If you employ 5 or more people you are legally required to have a company H&S policy. You are also legally required to carry out risk assessments and COSHH assessments. Method statements aren’t a legal requirement, but if you ever tender for work to principal contractors or CDM sites without them, you won’t get very far.
Company health and safety policy: This is a document that states in general terms how your company manages H&S. The document does not address specific jobs or sites, instead it gives an outline of your organisations structure and policy towards H&S, so is a stand alone document and not part of the RAMS for a specific site.
Risk assessments: These have to be completed for every task before an employee carries out any work. The reason fir them is to find out if there are any potential hazards and if so to introduce control measures to eliminate of reduce the risk to an acceptable level.
Method statements: Method statements don’t have to list every stage of a job, because many fitments come with their own method statement. As an example if a carpenter was fitting a lock, he would fit it as per manufacturers instructions. The manufacturers instructions are in effect a method statement.
COSHH assessments: A legal requirement for any substance used in the workplace letting people know the composition, the products hazards for the user, for the environment, fire fighting measures and first aid measures.