Suppliers will now create an Action Plan, that will be submitted to the Co-op. This will be kept electronically so that others may see it in order to demonstrate "transparency".

The Action PLan will be developed along lines set out by UK government for Environmental Reporting

This includes: (click for more DEFRA guidance)

Step 1 Identify a champion. this could be anybody you consider is suitably responsible. They could already be a supervisor or employee representative. They would ensure that the Action Plan is implemented and involves others as much as possible. You may have different people for different criteria or keep same throughout.
They would then:

Step 2 Review the present state of affairs. You have already identified in the "Assess" activity the current state of affairs. You just need to idenitify priorities for action.

Step 3 Set targets for improvement. This means setting realistic (SMART) targets. Targets spell out what is going to be done by when.

Step 4 Achieve your targets. By having clear visble targets more people can help achieve them. Set out how you and/or your champion will organise to achieve the targets.