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Moss Holm

What to Include in a Standard Operating Procedure (SOP)

The sections every standard operating procedure needs, tips for writing steps people will actually follow, and how to keep SOPs current.

By Tully Stroud, Founder · · 4 min read

A standard operating procedure (SOP) documents how a task is done so it is done the same way every time, by anyone trained to do it. Good SOPs reduce errors, speed up training and keep important knowledge from living in one person’s head.

When a process needs an SOP

  • The task is done differently depending on who does it
  • Mistakes are costly, unsafe or hard to catch
  • Only one person knows how to do it
  • The work must meet contract, quality or recordkeeping requirements
  • New staff need to learn it quickly

The core sections of an SOP

  • Purpose and scope: what the procedure covers and what it does not
  • Roles and responsibilities: who performs, reviews and approves the work
  • Materials, tools and forms: everything needed before starting
  • Step-by-step procedure: the actions, in order
  • Quality checks and records: what to verify and what to document
  • Exceptions and escalation: what to do when something goes wrong
  • Document owner and revision history: who maintains it and what changed

Write steps people will follow

  • Start each step with an action verb, such as “Record,” “Inspect” or “Label”
  • Keep to one action per step
  • Say who does the step when more than one role is involved
  • Include the values that matter: quantities, settings and time limits
  • Add photos or diagrams where words are not enough
  • Write for the least experienced person who will use it

Build it with the people who do the work

The most accurate SOPs come from walking through the process with the people who perform it. Watch the work, note the real sequence and ask where problems usually happen. Then have those same people test the draft before it is approved.

Keep SOPs current

An outdated SOP can be worse than none. Assign an owner to each procedure, set a review date, and update the document whenever equipment, materials or requirements change. Keep a revision history so everyone knows which version is current, and retire old copies.

Moss Holm develops SOP packages that include written procedures, supporting forms and checklists, and a documented handoff. Request a project discussion to scope a package for your team.

Put this into practice

Send your item list for a written quote, or talk with us about improving your inventory, purchasing or procedures.