PAS 100 / PAS 110 in UK public tenders

PAS 100 / PAS 110 (compost & digestate quality) is a standard the work itself must meet that UK public buyers ask suppliers for. In the UK public notices we have read, 27 name PAS 100 / PAS 110 in their published text — 5 of them in words that make it a requirement.

Find tenders asking for it →See the notices

759,877 notices classified · 10 Oct 2026

Standards the work must meet

PAS 100 / PAS 110 (compost & digestate quality)

Who sells against it: Organics recycling advisers
Named in notices: 27
As a requirement: 5
Open for bids now: 0

27UK notices that name it

5Name it as a requirement

0.1Per 10,000 notices in 2025

01/ How often

How often UK buyers name PAS 100 / PAS 110

Notices naming it each full year. The count is small because a notice is a summary: requirements usually sit in the tender documents, which the notice never quotes.

Every count here is a floor. We match the text of the notice, and a notice description is a summary — most tender packs demand things it never mentions. From 2025 the Procurement Act changed notice conventions, so the series is not continuous across that line.

22019

12020

22021

12022

52023

12025

Rate per 10,000 notices: 2019 0.4 · 2020 0.2 · 2021 0.3 · 2022 0.1 · 2023 0.5 · 2025 0.1

UK notices naming PAS 100 / PAS 110, by year
Period	Notices naming PAS 100 / PAS 110	Total
2019	2	2
2020	1	1
2021	2	2
2022	1	1
2023	5	5
2025	1	1

02/ Alongside it

What buyers ask for with PAS 100 / PAS 110

Of the 27 notices that name PAS 100 / PAS 110, how many also name each of these.

Notices naming it that also carry a classified requirement for each item.

Carbon reduction plan (PPN 06/21)1of 27
Environmental permit / waste carrier licence1of 27
Social value1of 27
TUPE transfer1of 27
UKAS accreditation1of 27

03/ Against the others

PAS 100 / PAS 110 against its class

The most-named standards the work must meet in UK notices, all years, and how often each is made a requirement.

Every count here is a floor. We match the text of the notice, and a notice description is a summary — most tender packs demand things it never mentions.

BS 7671 (IET wiring regulations)247notices55 required
EN 1176 / 1177 (playground equipment & surfacing)169notices44 required
ISO 8217 (marine fuel specification)92notices1 required
BS 5839 (fire detection & alarm systems)81notices17 required
EN 590 / BS 2869 (diesel & fuel oil specification)62notices4 required
EN 13501 / BS 476 (fire classification of construction products)43notices9 required
BS 3998 (tree work)30notices4 required

04/ The evidence

The sentence that asks for it

Every count on this page traces to a sentence in a real notice. These are the most recent, requirements first.

The proposed plant must be able to screen processed green waste which has completed a 10-week open windrow process as part of our PAS100 accreditation.RequiredYorwaste LtdProcurement for Supply, Delivery and Maintenance of one (1) Static Trommel
The Anaerobic Digestion Facility must be accredited to BS PAS110 and must treat the food waste in a manner that is compliant with relevant Animal By-Product Regulations.RequiredNewcastle City CouncilFood Waste Collection
…shall comply with the current edition (from time to time) of the British Standards Institution’s Publicly Available Specification for Composted Materials (BSI PAS 100) or as appropriate the British Standards Institution’s Publicly Available Specification for whole digestate, separated liquor and separated fibre derive…RequiredEast Staffordshire Borough CouncilTreatment for Garden Waste
The contractor shall then transport the same waste from the waste reception point to his waste composting point with a view to composting at least 90% of the waste delivered to it, producing and end-product that complies with PAS 100 standards or equivalent.RequiredDevon County CouncilCP1513-17 Contract for composting of East Devon District Council's garden waste
Processing should create a composted material, to PAS100 standards, suitable to be sold as soil improver or to be spread on agricultural land as a composted material.MentionedSuffolk County CouncilGarden Waste Receipt and Treatment
Supply of an EN 17033-certified Mater-Bi mulch material beneath a PAS100 compost mulch layer.MentionedForestry CommissionSheet Mulching Trial - Norfolk Woodland Creation Site

05/ Method

How this page is made

By Dan Keegan, RFP QuestReviewed 10 Oct 2026

Live figures

Notice counts come from RFP Quest's requirements Observatory: every UK notice on Find a Tender and Contracts Finder is read, and a notice counts as naming PAS 100 / PAS 110 only when a sentence in its published text names it. That sentence is stored with the count, which is how the evidence section can quote it.

“Required” means the sentence itself uses obligation wording — must, shall, mandatory, is required and similar — and a negated one (“is not required”) does not count. Rates are per 10,000 notices published that year, so years with more notices in the record compare fairly with years with fewer.

“Alongside it” counts, among the notices that name it, how many also carry each other classified requirement. The JOSCAR tag is left out: its matcher also catches “Achilles Building Confidence”, a different scheme.

Outside sources