An aspects and impacts register is where most ISO 14001 systems either prove their worth or fall apart. Clause 6.1.2 asks you to identify the environmental aspects of your activities and determine the impacts that follow from them. Too many registers list the obvious items — waste, energy, water — without ever working out which ones actually matter.
An aspect is not an impact
An aspect is something you do: you consume diesel, you discharge trade effluent, you generate packaging waste. The impact is what happens as a result — resource depletion, water pollution, landfill burden. I've seen registers that only record the aspect and skip the impact entirely, which makes significance scoring meaningless. You can't judge how serious something is if you've never written down what it actually does to the environment. Write both, every time, even when the impact seems obvious — "uses electricity" tells an auditor nothing; "contributes to depletion of finite resources and associated carbon emissions" is a statement you can actually score.
Significance is the part people skip
The standard doesn't tell you how to decide which aspects are significant — that's deliberate. But it does expect you to have a documented method and apply it consistently. I regularly see businesses score everything the same way they did three years ago, with no record of why a criterion was chosen or how it's weighted. If an auditor asks why diesel use scored higher than noise and you can't explain the logic, that's a finding. Pick criteria — scale, severity, likelihood, regulatory interest — and apply them the same way across every aspect. Keep the scoring sheet alongside the register itself, not in someone's head or a one-off workshop note nobody can find a year later.
Life cycle thinking widens the net
The 2015 revision requires a life cycle perspective, which catches people out. That means looking beyond your own site: how raw materials are sourced, what happens to outsourced processes, and what happens to your product or waste after it leaves you. A business that only assesses its own four walls is missing a requirement, not just being thorough. In practice this usually means adding a handful of aspects around procurement and end-of-life disposal that weren't there before — not rebuilding the whole register from scratch. It also means asking harder questions of suppliers and contractors than many businesses are used to asking, which is uncomfortable the first time but gets easier.
Where auditors actually dig
In my experience, auditors rarely fault the register for being too short. They fault it for being stale. The three findings I see most: the register wasn't updated after a process or site change, significant aspects aren't visibly linked to the objectives in clause 6.2, and the significance method on paper doesn't match what was actually applied when you look at the scoring. Any one of these is enough to raise a non-conformity, because they all point to the same underlying problem — the register exists, but nobody's really using it. Auditors can usually tell within a few minutes of questioning whether a register was built for the system or built for the audit.
Keep it working, not just filed
A register that only gets touched once a year, just before the audit, will always look slightly out of date — because it is. Build in a trigger: a new piece of kit, a new supplier, a change in legislation, or a near-miss should prompt a review there and then, not wait for the annual cycle. That's the difference between a document that satisfies an auditor for an afternoon and one that's actually managing your environmental risk.
If your register hasn't changed in twelve months, that's worth questioning before someone else does. Pull it out, check it against what's actually running in the business today, and make sure every significant aspect still points to something you're genuinely doing about it in your objectives. That half-day of honesty will save you a lot more than half a day at your next audit.
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