There is a rule at the centre of Adult Disability Payment (ADP) that decides more claims than almost any descriptor wording, and yet most people applying have never heard its name. It is called the reliability test, and it lives in regulation 7 of The Disability Assistance for Working Age People (Scotland) Regulations 2022. Understanding it is the difference between a form that says "I can cook a meal" and a form that says what really happens when you try. Our guide to ADP for hearing loss shows the reliability test applied to one condition. For a condition where the safety limb decides the claim, see ADP for vertigo.
The heart of it is simple. Being able to do something once, on your best day, with no thought for the cost, is not the same as being able to do it. Regulation 7 says an activity only counts as something you can do if you can do it safely, to an acceptable standard, repeatedly and in a reasonable time period. Miss any one of those four, on most days, and Social Security Scotland must treat you as unable to carry out that activity. That single rule is a protection built into Scottish law, and this guide unpacks what each part means and how to use it.
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Try one activity free →The four criteria, one by one
It helps to treat regulation 7 as four separate gates. You have to be able to pass through all four for an activity to count as done. If a health condition or disability closes any gate on more than half your days, the descriptor that reflects your real difficulty is the one that applies.
Safety is the criterion that carries conditions where something can happen without warning. See ADP for epilepsy for how supervision needs are described.
1. Safely
Regulation 7 defines doing something safely as doing it in a manner unlikely to cause harm to you or to another person, either during or after the activity, with consideration given to how likely the harm is and how severe the consequences would be. The key word is unlikely. A danger does not have to happen every time to count. If the consequence is serious enough, an occasional but real risk can mean an activity is not done safely.
Think of someone with epilepsy who can physically get in and out of a bath but risks a seizure while doing it. Or someone whose balance gives way without warning on stairs. The harm is not certain on any given day, but the severity of a head injury or a scald means the risk carries weight. Safety is about the manner of the activity and its aftermath, not just whether you completed it this time.
2. To an acceptable standard
This means doing the activity to a reasonable standard for that activity, taking account of the impact on you of carrying it out to that standard. Two things matter here. First, a job half done is not done: food that is undercooked, a body that is not properly washed, a journey abandoned partway. Second, and this is the part people miss, the cost to you counts. If you can technically finish an activity but it leaves you in severe pain, drained for hours or unable to do anything else, that impact is part of the standard.
3. Repeatedly
Regulation 7 defines this as being able to do the activity as often as it is reasonably required to be completed. Cooking a meal once is not the same as cooking every day. Walking to the end of the street once does not help if you cannot do it again on the way back. If pain or fatigue builds so that you can manage the first attempt but not the repeat the activity demands, you are not doing it repeatedly.
4. In a reasonable time period
This has a hard edge that many people find reassuring, because it gives a number. A reasonable time period means no more than twice as long as the maximum time a person without your condition would normally take. If getting dressed, preparing food or walking a set distance takes you more than double the usual time, because you have to stop, rest, catch your breath or push through pain, you are not doing it in a reasonable time and are treated as unable to do it that way.
Regulation 7 at a glance
- Safely – unlikely to cause harm to you or others, during or after, weighing likelihood and severity.
- Acceptable standard – a reasonable standard, counting the impact of doing it on you.
- Repeatedly – as often as the activity is reasonably needed.
- Reasonable time – no more than twice as long as someone without the condition would take.
Most days: how fluctuating conditions are handled
Very few conditions are the same every day. Fibromyalgia, multiple sclerosis, mental health conditions, chronic fatigue and many others come with good days and bad days, flare-ups and quieter spells. Regulation 7 does not judge you on a single snapshot. It asks whether you can carry out an activity reliably on most days, meaning more than half the time.
Pain conditions engage this rule harder than almost anything else. Our chronic pain and ADP overview works through the four tests with pain examples.
So the question is not "can you ever do this?" but "over a typical week or month, on how many days can you do this safely, to an acceptable standard, repeatedly and in a reasonable time?" If the answer is fewer than half your days, the descriptor that reflects your difficulty applies, even though there are days you manage. This is the single most important idea to carry into your application.
Why this rule protects you
It is worth stepping back to see what regulation 7 is really for. Without it, a determination could rest on the fact that you managed to cook a meal once during a consultation, or walked a short distance while being watched, and ignore that you paid for it with two days in bed. The reliability test stops that. It forces the whole picture into view: the risk, the quality, the repetition, the time and the after-effects.
In Scotland this protection sits inside a process that is already designed to be less adversarial. Most Adult Disability Payment determinations are made on the papers, which means your form is your case, and regulation 7 is the framework your words are read against. Social Security Scotland also has a duty to help gather supporting information, and a case manager can ask your GP, consultant or support worker directly. One reliable piece of formal information confirming a condition responsible for more than a minor part of your needs can be enough to show that the reliability test is met.
Putting reliability into your application
On Part 2 of your ADP application, each activity is your chance to answer regulation 7 in your own words. A weak answer states what you did. A strong answer states what it took. Compare these two ways of describing the same activity:
- Weak: "I can prepare a simple meal."
- Strong: "On a good day I can prepare a simple meal, but that is around two days a week. On the other days the pain and fatigue mean I cannot stand long enough, I have dropped hot pans, and it takes me over an hour for something that should take twenty minutes. Afterwards I have to lie down for the rest of the afternoon."
Conditions where an aid works but only for part of the day show this most clearly. See ADP for keratoconus for how a wear time ceiling answers the "repeatedly" test.
The second answer touches every gate: safety (dropped hot pans), standard and impact (lie down afterwards), repetition and frequency (only two days a week), and time (over an hour). It gives Social Security Scotland what regulation 7 requires it to weigh. It is also honest, which matters, because the reliability test rewards an accurate account of a difficult reality rather than a dramatic one.
Turn your conditions into reliability-tested answers
ADPexpert writes clear Part 2 answers for all 12 activities in the language regulation 7 is scored against, covering safety, standard, repetition, time and after-effects. Try one activity free.
Try one activity freeFrequently Asked Questions
What are the four ADP reliability criteria?
Regulation 7 of the Regulations 2022 says an activity only counts as done if you can do it safely, to an acceptable standard, repeatedly and in a reasonable time period. If you cannot meet all four on most days, you are treated as unable to carry out that activity, and the descriptor and points that reflect your difficulty apply.
What does doing an activity safely mean?
Safely means doing something in a manner unlikely to cause harm to you or another person, either during or after the activity, taking account of how likely the harm is and how serious the consequences would be. A serious enough risk matters even if it does not happen every time, such as a seizure while bathing or a fall on the stairs.
How does ADP handle conditions that change day to day?
Fluctuating conditions are looked at over time, not on a single day. The test asks whether you can complete an activity reliably on most days, meaning more than half the time. If you cannot, the descriptor that reflects your difficulty applies, which is why describing the pattern of good and bad days matters.
What counts as a reasonable time period?
A reasonable time period is no more than twice as long as the maximum time a person without your condition would normally take. If pain, fatigue, breathlessness or having to stop and rest means an activity takes you more than twice as long, you are not doing it in a reasonable time.
Does acceptable standard include the effect on me?
Yes. To an acceptable standard means to a reasonable standard for the activity, taking account of the impact on you of doing it. If you can wash or cook but it leaves you exhausted, in severe pain or unable to do anything else for the rest of the day, that impact is part of the reliability question.
Is the reliability test different in Scotland?
The four criteria broadly align with the rest of the UK, but in Scotland they sit in regulation 7 of the Regulations 2022 and are applied by Social Security Scotland through a mostly paper-based process. Social Security Scotland also has a duty to help gather supporting information that can confirm your difficulties meet the test.