Agree with the idiot test on the SSOP. They should be a simple step by step guide that can get the least sanitation minded person you know (run it by the CEO to make sure they understand - ha ha) be able to clean the area to what you want. It sounds dumb but is worth it in the long run. So something as easy as 'clean employee break room' would be broken down like:
1. Using chemical X and a white rag, wipe down all horizontal surfaces in the break room including chair seats, the top of the microwave and refrigerator, and all tables
2. Using chemical Y sanitize spray, mist the tables
3. Remove old items from the refrigerator and wipe all shelves, grating, trays, etc. with clean rag
4. Use push broom to remove crumbs and debris from room - place in trash
5. Using chemical Z, mop floors - remember to place 'wet floor' sign when mopping and when floor is wet
6. Wipe down fixtures with chemical Y sanitizing spray, including door knobs, handles, water fountain buttons, etc.
Which reminds me of the other important part - list chemicals to be used and PPE to be used at each step. I use a template with 3 boxes at the top of the page. The left-most is a list of chemicals to be used, the middle one is a list of tools needed, and the right one is a list of PPE required. Then I list the steps below that.
Per what Hoosiersmoker said, you want an SOP that is a 1 pager that says, basically, "SSOPS have been developed for all areas of the plant. These SSOPS detail how to clean the plant and equipment, what chemicals and tools to use, and what PPE is required. Workers completing the SSOPS are trained through on-the-job training in completion of those SSOPS. SSOPS are performed, at a minimum, at the frequency described on the master sanitation schedule.