Highly regulated process (pharma, food safety, medical): Add a regulatory reference section citing specific standards (ISO, GMP, HACCP). Include witness or sign-off requirements for critical steps. Add a training verification requirement (operator must be trained and signed off before performing the procedure).
Process with multiple valid methods: Document the preferred method as the primary procedure and include approved alternatives as appendices. Specify when each alternative is appropriate. Do not mix methods within the same procedure flow.
Cross-departmental process: Include a RACI assignment for each step showing which department is responsible, accountable, consulted, or informed. Add a handoff section at each department boundary specifying what is passed, to whom, and how.
Emergency or exception procedure: Separate the standard procedure from the emergency procedure. The emergency section should be scannable in under 30 seconds -- use bold headers, numbered steps, and no paragraphs. Include emergency contact numbers.
Process performed by a single person with no backup: Flag this as a risk. Include a knowledge transfer requirement (the SOP itself serves as documentation, but a second person should be able to perform the procedure using only the SOP). Test this by having someone unfamiliar with the process attempt it using the SOP alone.