THE WEIGHTS AND MEASURES (PACKAGEDGOODS) REGULATIONS 2006

Guidance
DECEMBER 2015v.4

TABLE OF CONTENTS
Guidance Note

Page 3Annex A : Guide to Each Regulation

Page 11

Annex B: Suitability of Measuringor Checking Equipment

Page 21

Annex C: Quality Control Systems

Page 23

Annex D: Table Showing the application
Of different quantity marking regimes

Page 302

THE WEIGHTS AND MEASURES (PACKAGED GOODS)REGULATIONS 2006
Introduction
1. The following guidance was originally produced by the Department for Trade andIndustry, to assist all affected by the Weights and Measures (Packaged Goods)
Regulations 2006 SI 2006/659 (“the Regulations”). It has subsequently been updated by
the National Measurement and Regulation Office to reflect changes to the legislation
introduced in 2014 by the Weights and Measures (Food) (Amendment) Regulations 2014
(SI 2014/2975) and in 2015 by the Consumer Rights Act 2015 and the Consumer Rights
Act 2015 (Commencement No.3, Transitional Provisions, Savings and Consequential
Amendments) Order 2015.
2. This guidance is not intended to be an exhaustive explanation of the Regulations. It
has no legal force, though it may be helpful in understanding the requirements of theRegulations. The law will continue to be enforced by Inspectors of Weights andMeasures employed by local authority trading standards services. Those services will bepleased to provide further assistance and advice on the Regulations and how thoseaffected can in practice discharge the obligations laid on them. It should be noted
however that definitive interpretation of the law is a matter for the Courts.
Background
3. The Regulations repeal Part V of the Weights and Measures Act 1985 and replace theWeights and Measures (Packaged Goods) Regulations 1986 (SI 1986/2049). The
Regulations implement Directive 76/211/EEC (“the Directive”) governing the quantity
control of packaged goods under the ‘average’ system of quantity control. This system
was first introduced in 1980; before that, UK law required all indications of quantity
control to be minimum indications (that is, the quantity has to be at least equal to thatindicated). The Regulations reflect more precisely the wording in the Directive.
4. The Regulations also remove the statutory effect of certain parts of the Code ofpractical guidance for packers and importers (Issue No 1, 1979) as editorially updated
and the Manual of practical guidance for Inspectors (Issue No. 1, 1980). The Packers’
Code and the Inspectors’ Manual however contain reference material (particularly in the
Appendices) that may still be found helpful for the understanding of average quantity
control procedures in general. But the guidance that they provide on the requirementsof the 1986 Regulations is no longer relevant.
5. The implementation of Regulation (EU) No 1169/2011 on the provision of foodinformation to consumers (“FIC”) on 13 December 2014 (through the Weights andMeasures (Food) (Amendment) Regulations 2014 (“the Food Regulations 2014”)) has
resulted in changes to the scope of the quantity labelling requirements of the Regulations.
Non E-marked pre-packed foods will no longer be required to meet the labelling
requirements under the Regulations (with the exception that Regulation 8(1) willcontinue to apply where provided for by trade practice), but will instead be subject to
FIC quantity labelling requirements. E-marked packages will continue to be subject tothe quantity labelling requirements under the Regulations to ensure continued
compliance with the Directive. The Regulations still apply in full for non-food products.
3

6. The implementation of the Consumer Rights Act 2015 (“the CRA”) and theConsumer Rights Act 2015 (Commencement No.3, Transitional Provision, Savings andConsequential Amendments) Order 2015 on 1 October 2015 has resulted in changes to
Trading Standards powers of entry and inspection by consolidating these in to a single,
modern set of powers. The new consolidated set of powers in Schedule 5 to the CRA
replaces the existing powers of inspectors and local weights and measures authorities and
Schedule 7 to the Regulations is revoked. However, the power to issue instructions inRegulation 12 has been retained in these Regulations. The CRA also scraps therequirements for bakers of unwrapped and open packed bread to keep records of weightchecks they have made. This also removes the need for small bakers to apply for an
exemption and Trading Standards to issue an exemption certificate. However, bakers of
unwrapped and open packed bread are still required to meet the requirements of theRegulations but are no longer required to keep records of any measurements, check or
adjustments.
7. Annex A of this guidance contains a commentary on each of the Regulations, Annex
B sets out further advice on the suitability of measuring or checking equipment, Annex C
provides advice on quantity control systems and gives an example of setting up a
sampling quantity control system, and Annex D sets out the application of different
quantity labelling regimes.

What the average system does
8. The average system applies to most goods which are pre-packed in pre-determined
quantities by weight or volume, including most foodstuffs and non-foodstuffs. Its aim
is to provide a defined regulatory framework for the automatic filling of packages. A
degree of variation in the content of the packages is inherent in all such processes: theaim of the average system is to define acceptable tolerances for that variation, so that thepurchaser may buy with the confidence that he is protected against short weight ormeasure, while businesses are protected against unfair competition. As its namesuggests, the average system allows a proportion of packages to fall below their statedquantity within a specified tolerance (see Packers’ Rules below). This is in principle adifference from the older weights and measures legislation, which is sometimes bycontrast referred to as the ‘minimum’ system. (In some circumstances, packers may
however still find it more convenient to opt for measuring each package individually
under the minimum system, see para. 22.)
What constitutes a package under the Regulations?
9. For the purposes of the Regulations a “package” is defined as the combination of a
product and the individual package in which it is packed when:
it is placed in a package of whatever nature without the purchaser being present
and;- the quantity cannot be altered without the package either being opened orundergoing a perceptible modification (except in the case of knitting yarn).
10. The Regulations apply this system to all packages intended for sale in constantnominal quantities which are between 5 g or 5 ml and 25 kg or 25 L, inclusive.
-

11. The Regulations also cover packages, in the ordinary sense, which contain two or4

more items, at least one of which is itself a “package” within the meaning of theRegulations. The enclosing packaging is in such a case defined as an “outer container”.
Where outer containers are intended for sale to consumers, or would be regarded as
appropriate for such sales, the outer container has to reproduce the quantity indications
which are required on any packages which it may contain, and must indicate the numberof packages contained (unless this information can be ascertained through transparent
packaging).
12. From 13 December 2014, foods subject to FIC which are sold in a liquid medium
will be required to indicate drained net weight in addition to the net weight in line with
Annex IX of FIC. Liquid medium, as defined in FIC are frozen, quick-frozen or mixturesof the following: water, aqueous solutions of salts, brine, aqueous solutions of food acids,
vinegar, aqueous solutions of sugars, aqueous solutions of other sweetening substances,fruit or vegetable juices in the case of fruit or vegetables. There is no mandatory
requirement to mark the drained net weight on solid foods in an oil medium, any suchmarking will be voluntary. A recommended procedure for determining the drained
weight can be found in WELMEC document 6.8 (Guidance for the Verification ofDrained Weight, Drained Washed Weight and Deglazed Weight and Extent of Filling of
Rigid Food Containers). The drained net weight may be an average in line with
document 6.8. For glazed foods subject to FIC the net quantity declaration is exclusiveof the glaze.
13. In distinguishing between the contents and the packaging, the approach of OIML
Recommendation 87 is recommended. This classifies as packaging ‘everything that is
intended to be left over after use of the product, except for items naturally in the
product. ‘Use’ includes consumption or subjecting to a treatment. As an example,
using this definition the stick in a lollipop is considered part of the packaging, as are theimmediate wrappers on wrapped sweets or a tea bag where the bag itself would betreated as part of the packaging. Examples of items naturally present in a productinclude crust on cheeses (e.g. Stilton), and edible skin on sausages.
The Packers’ Rules
14. The Directive sets out three rules with which packers must comply:--

the actual contents of the packages should not be less, on average, than thenominal quantity;
the proportion of packages which are short of the stated quantity by a defined
amount (the “tolerable negative error” or TNE) should be less than a specified
level; andno package should be short by more than twice the TNE.

15. The Directive also prescribes a specific test procedure (the reference test) which
enforcement authorities will use at the premises of packers and importers, when it isnecessary to establish whether a particular batch of packages comply with the first two
rules. They place packers under a duty to ensure each batch of packaged goods
complies with the three packers’ rules. Packers may use whatever quantity control andchecking procedures they find convenient, so long as these are sufficiently rigorous toensure compliance with the three packers’ rules. Trading Standards officers may carryout reference tests where they consider this appropriate to check compliance with thefirst two rules.
516. The packers and importers checks need to be ‘sufficiently rigorous’ to ensure thatthe packages are packed to meet the three packers’ rules. This implies that the systemshould be as efficient as a reference test to control the average quantity and the
proportion of packages with a deficiency of more than the TNE.
17. In the design of the system, attention is recommended to the following issues:
a.
b.
c.
d.
e.

for processes controlled by sampling, that the sampling plan is specified
and that the target quantity and control limits are appropriately set,for packing lines controlled by checkweighers, that the set points areappropriate,that checking or measuring equipment is properly maintained andchecked,that the system should be formalised and reviewed regularly for its
appropriateness, and include corrective actions and records that must be
made,that the system should specify the training for staff to ensure that thesystem is adequately implemented

18. Further advice on designing and setting up quantity control systems is contained inAppendices C and D of the Packers’ Code.
19. All products are required to meet the three packers’ rules at the time of packing.
For desiccating products, which may lose weight after packing, the onus is on the packer
to prove that any subsequent failure was due entirely to the desiccation of the productcontained in the packages after they were made up.
Tolerable negative error
20. The TNE is the amount set out in the table below in relation to the nominal
quantity on the package:
Nominal quantity in grams and millilitres

Tolerable negative error
As a %age of nominal
quantity

5 to 50

9from 50 to 100-

from 100 to 200

4.5

from 200 to 300-

from 300 to 500

3from 500 to 1,000-

from 1,000 to 10,000

1.5from 10,000 to 15,000-

above 15,000

1g or ml

4.5

-

9

15

-

150

-

21. Where the TNE is calculated as a percentage of the nominal quantity, the amountmust be rounded up to the nearest one tenth of a gram or millilitre.
6

Duties as to checking, documentation and suitable equipment
22. In order to demonstrate compliance with the three packers’ rules, packers are placed
under a duty either to measure the content of each package, or to check the contents bysampling. Where packers choose to measure each package, there is no requirement
under the Regulations for records to be made. However, if records are not made,compliance with the three packers’ rules can be assured only by checking that eachpackage contains at least the stated quantity (that is, by packing to the minimum system).
This method of packing is likely to be best suited for small batches of packages, but may
be a helpful option for small-volume packers.
23. Where packers do not measure the contents of each package but choose to rely on
sample checking to demonstrate compliance, the Regulations require records to be madeof the results of this checking, which must include any corrections and adjustments madeto the packing system. Records must be kept for a period of at least one year from thedate on which the packages leave the packer’s premises or until the date, if any, marked
on the package which indicates by when the product ought to be consumed, whichever isshorter. As noted earlier, the system of sampling used must be sufficiently rigorous toensure that the packages are packed in line with the three packers’ rules.
24. From 1 October 2015 bakers of unwrapped and open packed bread are no longer
required to keep records of their weight checks, however, they are required to meet theremaining requirements in the Regulations.
25. All measurements and checks are required to be performed with equipment that issuitable for the purpose. The Regulations do not prescribe the characteristics of thepermitted equipment. So far as the requirements of these Regulations are concerned,
manufacturers and packers may use for these purposes any equipment that is suitable forthe task intended. However, all equipment used must of course comply with all current
legislation regulating that class or type of equipment. Annex B provides further
information on suitability of equipment and relevant legislation.
Responsibilities of Packers and Importers in the Marking of Packages
26.
Packers and importers must ensure that packages are marked in such a way as to
be indelible, easily legible and visible on the package in normal conditions of presentation(on the outside or inside if the packaging is transparent) with the following:- the nominal quantity, expressed in litres, centilitres or millilitres for liquids or in
kilograms or grams for other products;- the nominal quantity must be shown in figures followed by the name or thesymbol for the measurement unit involved.
- the size of the nominal quantity and measurement unit should comply with thefollowing table:

7

Nominal quantity in g or ml-

Minimum height of figures

<50

2 mm

-

200

3 mm

≥200 -

1000

4 mm≥1000 - 10000

6 mm

≥50

-

The nominal quantity must include any additional quantity to which any
statement on the package refers. So if the package states that a quantity orpercentage is provided “free” the nominal quantity must refer to the total
quantity contained in the package including the “free” amount.

-

The name and address of the packer or importer or of the person who arranged
for the packer to make up the package in the UK, or a mark which enables thename and address of any of the foregoing to be identified.

-

It is recommended that the nominal quantity figure and words (or symbols)
should be of the same point size to ensure legibility.

27. Pre-packed food which is not E-marked and which is only subject to the quantity
labelling requirements under FIC may still be marked with the larger font heights asdetailed in the table in paragraph 26 above and may still include the name and address ofthe packer or importer in line with the Regulations’ requirements. However, there are
more specific requirements for name and address labelling that apply separately underFIC.
28. If, when a package is made up or imported it is not marked with an indication of
nominal quantity, the packer or the importer must decide what nominal quantity heproposes to mark on the package and keep a record of this until such time as the nominal
quantity is marked on the package.
29. Where a package contains liquid its nominal quantity must be indicated by thevolume at 20°C. Where it contains a product other than liquid, including a mixture ofliquid and solids, its nominal quantity must be indicated by weight. As a general guide, aliquid is normally considered to be a product that, at 20°C, will easily pour and can bemeasured in a measuring cylinder. The time taken for this operation is likely to be lessthan a minute, with the amount left in the container likely to be less than 1% of thenominal quantity. Where doubt exists over whether a product is liquid within themeaning of the regulations it should be marked by weight unless normal trade practiceprovides otherwise (e.g. ice cream).
Exceptions to the Nominal Quantity Declaration
30. The normal requirement for a declaration of the nominal quantity in the units ofmeasurement shown above does not apply to milk sold or supplied to a consumer in a
returnable container. A supplementary indication of the nominal quantity in non-metricunits is allowed if it conforms to section 8(5A) of the Weights and Measures Act 1985.
This means it must accompany the normal declaration of quantity expressed in metric8

units and may not be larger or more prominent. Supplementary indications may be
expressed in any non-metric units (including US units), and may include other indicationsof quantity, for example weight including immediate wrappers.
The E-mark
31. The E-mark, when placed on a package, is a declaration by the packer that thecontents comply with the average system as set out in the Directive. As such, it acts as a
metrological passport throughout the European Economic Area (“EEA”), assuring freeaccess, so far as metrological requirements are concerned, to all EEA markets. There is
no requirement for packages to be labelled with the E-mark, which is entirely optional
for the packer. But the Regulations prohibit its use on packages which do not meetcertain criteria.
32. Where used, the E-mark must be at least 3 mm high and applied to packages in thesame field of vision as the indication of the nominal quantity. The technicalspecifications of the E-mark are shown in Schedule 4 of the Regulations.
33. In order to qualify for E-marking the package must:-have been packed in conformity with the three packers’ rules, andhave a nominal quantity between 5 g or ml and 10 kg or L (inclusive).

33. Should a packer wish to export E-marked packages from the UK (regardless ofwhether they are being exported direct from the UK or have first been imported with theaim of exporting them) the packer must provide the relevant local trading standards
department with a notice identifying the premises where this activity is taking place, prior
to exporting or importing the packages.
Units of measurement
34. The Regulations import certain provisions of the Weights and Measures (Quantity
Marking and Abbreviation of Units) Regulations 1987 (SI No 1987/1538), so far as these
are applicable to packaged goods, and packages subject to the Regulations are no longer
subject to that SI. This relocation is only for the convenience of those affected by the
Packaged Goods Regulations, and does not alter the relevant requirements.
Marking Requirements
35. The Regulations reflect the wording in the Directive and require the above markings
to be easily legible and visible in normal conditions of presentation. It will be a matterof fact whether the markings are:-easily legible, andvisible in normal conditions of presentation.

36. Under FIC the quantity indication must be placed in the same field of vision as thename of the food and the alcoholic content (where applicable).
937. Legibility requires use of an appropriate font, and that the colour of print of themarking is in good contrast to the background. Where the container is transparent themarking must be in good contrast to the colour of the product forming the visible
background. The RNIB has produced helpful ‘clear print guidelines’, which recommend
fonts such as Arial, Univers and New Century Schoolbook, the use of a minimum point
size of 12 or 14, and selective use only of block capitals and italics. Use of theseguidelines will be helpful in ensuring legibility of the text. As regards the marking of thenominal quantity, however, note the minimum height of figures required by theRegulations (para. 26 above).
38. One way to ensure that markings are visible in normal conditions of presentation isto place markings on the front, or possibly the top, of the container. However, there
may also be other ways to comply. The size and shape of individual containers will
influence the position of the quantity mark and the means by which legibility is best
achieved in accordance with the regulations
Enforcement
39. The law on weights and measures is enforced by Inspectors of Weights andMeasures employed by local authority trading standards services. The powers to enforce
the Regulations are contained in Schedule 5 to the CRA.
Legal Instruments
40. Copies of the legislation referred to in this guidance can be viewed at:www.legislation.gov.uk or obtained from The Stationery Office Ltd bookshops (tel. No:
0870 6005522).
National Measurement and Regulation Office 201510

Annex A
Weights and Measures (Packaged Goods) Regulations 2006:
Guide to Each Regulation

Regulation 1: Citation, commencement, revocation and extent
1.1
Regulation 1 sets out the date that the Regulations come into force and gives
effect to Schedule 1, which repeals Part V and Schedule 8 of the Weights and Measures
Act 1985 and revokes the Weights and Measures (Packaged Goods) Regulations 1986
and its three amending orders.
1.2
The commencement date is 6th April 2006. This date fits in with theGovernment policy of commencing new legislation so far as possible on one of two
implementation dates (6th April and 1st October) to reduce the burdens on business oflegislation taking effect at different dates throughout the year.
1.3
The Regulations do not apply to Northern Ireland, which has its own weights
and measures legislation.
Regulation 2: Interpretation
1.4
This Regulation provides interpretation of the terms used in the Regulations.
The definitions of “importer”, “nominal quantity”, “outer container” and “package” areof particular importance for an understanding of the Regulations.
Regulation 3: Scope of application
1.5
This Regulation sets out what is caught by the Regulations and also those cases
where the Regulations do not apply.
1.6
The Regulations apply to all packages of whatever product that have been madeup in a weight or volume of between 5 g or ml and 25 kg or L (inclusive) where all the
packages are intended to contain the same nominal quantity which has been determinedby the packer in advance.
1.7
They also apply to outer containers, which are containers which contain packages
to which the Regulations apply and which were placed in the outer container without thepurchaser being present, can’t be altered without the package being opened orundergoing a perceptible modification, and where the container is intended to be sold, or
would normally be regarded as appropriate for sale, to a consumer.
1.8
It also applies the Regulations to bread in the form of single loaves, made up in apredetermined constant quantity between 300 g and 10 kg, which is unwrapped or madeup in open packs. Regulation 3(3) gives effect to Schedule 5 which sets out
modifications in the application of these Regulations to bread.

11

1.9
Regulation 3(4) provides that certain packages which are not E-marked are notcaught by the Regulations. The packages to which the Regulations do not apply are non
E-marked packages that are: intended for use in a trade or business process; or contain aproduct of a kind which would be sold to consumers in a quantity of less than 5 g or ml
but where the packages are not intended or normally sold to consumers; or intended to
be sent outside the UK; or intended to be used by the armed forces in the UK; orintended to be used as ships stores for a journey ending outside Great Britain; or containsugar in a quantity less than 20 g. Regulation 3(4)(g) was substituted by the Food
Regulations 2014 and is permitted under separate European law (Article 2(2) of Directive
2001/111/EC). This regulation also includes an exemption for single application
cosmetic packs, thus aligning the Regulations with the Cosmetics Regulation.
1.10 Regulation 3(5) provides that exempt imports are not subject to the provisions of
the Regulations which impose metrological and marking controls. Exempt imports are
E-marked packages or outer containers packed in or imported into another Member
State of the European Economic Area (which will therefore have implemented the
Directive) subject to conditions aiming to secure that this implementation remains
effective; and providing the package is marked with the name and address of thepacker/importer in the other Member State.
1.11 Regulation 3(6) exempts pre-packed foods subject to FIC which are not labelledwith the E-mark from the scope of the labelling requirements of the Regulations, exceptthat Regulation 8(1) (which provides for liquid products to be marked with nominal
quantity by weight and other products to be marked with nominal quantity by volume,
where so provided for by trade practice) will continue to apply to foods subject to FIC.
This is permitted under Article 42 of FIC.
Regulation 4: Duty to comply with three packers’ rules
1.12This Regulation places a duty on packers and importers to ensure that theirpackages have been made up in line with the requirements of the three packers’ rules (seepara. 14).
1.13 Compliance with the three packers’ rules will where necessary be determined byappropriate tests including the reference test, but the duty of packers or importers is topack to, or get sufficient evidence to show that the prepackages meet the rules rather
than to pass the test.
Regulation 5: Duty of packers and importers to mark packages
1.14 This Regulation places a duty on packers and importers to mark packages withspecific information, comprising the nominal quantity of the packages and the name andaddress or identity mark of the packer, importer or person arranging for the packages tobe made up or imported. This Regulation does not apply to non E-marked foods, byvirtue of Regulation 3(6), as equivalent requirements are now provided for in FIC. FIC
requires that any pre-packed foods above 5 g which are intended for sale or supply to
consumers or mass caterers be labelled with net quantity, unless they are expressly
exempt under FIC.
1.15 Regulation 5(1)(b) requires that packages bear the name and address of the packer
or importer, or a mark that enables that person to be readily ascertainable. This is to12

ensure that the packer or importer can be identified by the enforcement authorities.
Identification may, alternatively, be by means of a postcode if the full name of the packer
or importer is on the package, or a website address if it would enable the packer orimporter to be easily identified.
1.16 It should be noted that the nominal quantity to be marked on the packaging
under Regulation 5(1)(a) is the total quantity contained. This does not prevent themarketing of packages as “quantity X for the price of quantity Y”, but the declaredcontents must be the total contents.
1.17 It should be noted that the use of qualifying statements such as “when packed”
and “approx” does not remove the duty to mark on the package its total nominal
quantity.
1.18 Together with Regulation 8, the Regulation also specifies how that information,and the E-mark, where the package satisfies the requirements for E-marking and thepacker or importer chooses to apply it, is to be displayed.
1.19 This Regulation does not apply to non E-marked packages containing milk soldin returnable containers, where such marking requirements would not be reasonablebecause of the nature of the container or to unwrapped bread.
1.20 The Regulation also includes an exemption from the name and address labellingfor packages sold or supplied to a consumer from the packer or importer’s own premises
or vehicle.
1.21 Regulation 5(6) exempts packages from labelling requirements if they arecontained within an outer container and they would not be intended or consideredappropriate for sale to the final consumer. This includes inner packages which would not
be sold to the final consumer as a separate item.
1.22 There is no longer an exemption from labelling for returnable containers firstmarked with embossed or fired on markings before 1st January 1980, as it is now
considered to be obsolete.
1.23 The Regulation also disapplies the requirement to mark the name and address ofa packer or importer in the UK from cosmetic products where there is a requirement tomark the name and address of a manufacturer or supplier established in another Member
State under the Cosmetic Products (Safety) Regulations 2004 (SI 2152).
Regulation 6: Duty of packers and importers to mark outer containers
1.24 Regulation 6 sets out duties on packers and importers to mark outer containers.
Broadly speaking, the information required to be marked on the packages must be
reproduced on the outer container (unless the labels on the packages can be read throughtransparent packaging); and in addition, the number of packages contained must be
identified. This Regulation does not apply to non E-marked foods, by virtue ofRegulation 3(6), but separate requirements on labelling of multipacks are provided for in
FIC.

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Regulation 7: Liability for labelling packages and outer containers
1.25 Regulation 7 seeks to address the situation in which an indication of quantity
placed on a package or outer container is subsequently replaced or supplemented. It
applies all of the duties imposed by the Regulations to the person who marks the later
indication, as if he were the original packer or importer.
1.26 A contract packer is responsible for ensuring that the labelling requirements are
met regardless of whether the labels are supplied by the contractor.
Regulation 8: Specific requirements as to quantity marking
1.27 This Regulation sets out specific requirements relating to how the nominal
quantity is displayed.
1.28 It also includes all the obligations on packers and importers of packages subject tothese Regulations that are currently included in the Weights and Measures (Quantity
Marking and Abbreviation of Units) Regulations 1987 (SI 1987/1538). It is relocatedhere for the better convenience of packers and importers, avoiding the need to refer to a
separate set of Regulations.
1.29 Packages subject to these Regulations are accordingly no longer subject to the
Quantity Marking and Abbreviation of Units Regulations.
1.30 This Regulation sets out the requirement to mark drained net weight for foodproducts presented in a liquid medium (see para 12).
Regulation 9: Packers’ and importers’ duties as to equipment, checks anddocumentation
1.31 Regulation 9 sets out duties on packers and importers as to the equipment
they may use and the measurements or checks they must make and documentation theymust keep.
1.32 The Regulations require packers to measure or check their packages using
equipment that is suitable for the operation for which is being used. Any equipmentthat is used must also comply with any separate legal requirements under measuring
instrument legislation that apply to it.
1.33 Where every package is measured, there is no requirement to keep records (but see
para. 22). Where the packer chooses to check packages by sampling, the system ofsampling and tests must be sufficiently rigorous to ensure that his packages are made up
in line with the requirements of the three packers’ rules. He must also make and keep
records of the checks he has made for a year after the packages have left his possession,or for the shelf life of the product, whichever is the shorter. Records of checks on
unwrapped bread need only be kept for as long as the wrapped equivalent loaves.
1.34 An importer may either check his packages using suitable equipment, and keep
records of the checks, or he may obtain before the packages leave his possession
sufficient evidence to give reasonable grounds for believing that the packages have been
14

packed in accordance with the three packers’ rules and keep the evidence he has
obtained.
Regulation 10: Enforcement by local weights and measures authorities
1.35 Regulation 10 places a duty on local weights and measures authorities to enforce
the Regulations. It also provides that only those authorities may bring prosecutions foroffences under the Regulations (except for the disclosure of information offence).
1.36 Proceedings must be instituted within 12 months of the offence beingcommitted.
1.37 The powers of investigation that may be used by Trading Standards in theenforcement of these Regulations are those set out in Schedule 5 to the CRA.
Regulation 11: Notices to local weights and measures authorities
1.38 Regulation 11 requires packers or importers of E-marked packages to give noticeto the local weights and measures authority specifying certain information about the
packages. This is to allow for appropriate enforcement to be carried out on E-marked
packages even where they are not placed on the domestic market.
1.39 This Regulation replaces the requirements in Section 54(4), (5) and (6) of the1985 Act.
Regulation 12: Instructions by inspectors
1.40 Regulation 12 gives inspectors the power to issue a notice giving instructions topackers or importers, where they have reasonable grounds for believing that they havefailed to comply with the three packers’ rules. These instructions may require packers orimporters to keep specified packages until the end of the next working day of the local
weights and measures authority at a specified place and at the disposal of the inspector.
Secondly, where an inspector believes that a person has failed to perform any duty inrelation to measuring or checking his packages, the notice may also contain any
instructions that the inspector believes are appropriate with the intention of ensuring thatthe person does not fail to perform that duty again. Any notice of objection to
instructions should be addressed to NMRO at:
National Measurement and Regulation Office
Department for Business, Innovation and Skills
Stanton Avenue
Teddington, TW11 0JZ
1.41 The Regulations also provide for an appeals procedure where a packer orimporter objects to the instructions and make it an offence not to comply with a noticegiven under this Regulation.
1.42
Act.

This Regulation repeats provisions that were contained in section 63 of the 1985

15

Regulation 13: Offences relating to the making up and marking of packages andouter containers, and record keeping
1.43 This Regulation makes it an offence to fail to comply with any of the duties set
out in Regulations 4, 5, 6, 7, or 9.
1.44 It also provides for offences in relation to both the alteration, with intent todeceive, of records or documents required under the Regulations or of making a false
record or referring to a document known to be false.
Regulation 14: Offences relating to the sale of packages
1.45 This Regulation makes it an offence, as under the existing Regulations, to sell any
package that the seller knows or has reasonable grounds for believing has a negative
tolerable error of more than twice the level permitted by Schedule 3.
1.46 There is also an offence of selling a package in circumstances in which the seller
knows, or has reasonable ground to believe that it comes from a batch that has failed thereference test unless he can show that corrective action has been taken or the actual
quantity of the package exceeded the nominal quantity.
Regulation 15: Offences relating to E-marks
1.47 This Regulation creates an offence of marking a package with an E-mark otherthan permitted by these Regulations.
1.48 It is also an offence to mark a package with a similar mark, intending to deceive,or for a person who is not the packer or importer (nor someone acting on their behalf),
to apply the E-mark.
Regulation 16: Disclosure of information
1.49 It is an offence for an inspector (or accompanying person) to disclose information
relating to trade secrets or secret manufacturing processes that he has obtained by virtueof the Regulations unless the disclosure is made in the performance of his duty as aninspector.
1.50 This Regulation contains a provision permitting the disclosure of information
where the person from whom it was obtained has consented to its disclosure or where itis disclosed more than 50 years after it was received. This represents current goodpractice on disclosure of information held by public bodies.
Regulation 17: Corporate offence provisions
1.51 Regulation 17 provides that where an offence has been committed by a body
corporate, and it is proved that it was committed with the consent of or was attributableto neglect by any director, manager or similar officer of the body corporate, they shallalso be guilty of the offence and be liable to prosecution.
16

Regulation 18: Penalties for offences
1.52 This Regulation sets out the penalties for offences under the Regulations. The
penalty for all offences, with the exception of those listed below, is, subject to, onsummary conviction, a fine not exceeding level 5 on the standard scale.
1.53 For the offences relating to the alteration, with intent to deceive, of records or
documents or of making a false record or knowingly referring to a false document, thepenalty on summary conviction is a fine not exceeding level 5 on the standard scale or
imprisonment for a term not exceeding 3 months or both.
1.54 The penalty for disclosure of information by an inspector (or accompanying
person) is a fine not exceeding the statutory maximum and on conviction on indictment,
imprisonment for a term not exceeding 2 years or to a fine or to both.
Regulation 19: Defences
1.55
14.

This regulation provides defences against certain offences in Regulations 13 and1.56 It is a defence to prove that a person charged with an offence under Regulation
13(1) or 14(2) took all reasonable precautions and exercised all due diligence to avoid
committing the offence.
1.57 It is a defence for a person charged with failing to comply with the three packers’
rules, to prove that the packages were tested when not in his possession and in relation
to a nominal quantity that was not on the packages when they were in his possession.
1.58 It is also a defence for an importer to show that he obtained the required
documents, took all reasonable steps to verify the information, had no reason to believethat the packages weren’t packed in accordance with the three packers’ rules and took all
reasonable precautions to ensure that there was no reduction in their quantity while they
were in his possession.
1.59 This Regulation also includes a defence for products subject to desiccation. It isa defence to show that the packages were packed in accordance with the three packers’
rules and that any deficiency is entirely due to the desiccation of the product in the
packages after they were packed.
Regulation 20:

Trade Descriptions Act

1.60 This Regulation provides that an indication of nominal quantity is not a tradedescription under the meaning of the Trade Descriptions Act.
Regulation 21: Transitional provisions
1.61 This Regulation sets out transitional provisions. It provides that packages madeup or imported before the 1986 Regulations were revoked shall continue to be subject tothose Regulations and that these Regulations shall not apply to such packages.
171.62 It also provides that packages that were subject to Part IV of the 1985 Act before
6th April 2006 shall be permitted to comply with the packing and marking requirementsof those provisions until 6th April 2007 and packages with a nominal quantity greater than
10 kg or L that were permitted to be E-marked prior to 6th April 2006 shall be permitted
to be E-marked until 6th April 2007.
1.63 It also sets out transitional arrangements for notices and instructions issued byinspectors under Part V of the 1985 Act and for the treatment of trade secrets obtainedby virtue of Part V.
Schedule 1: Repeals, revocations and consequential amendments
1.64 Schedule 1 sets out the repeals and consequential amendments to otherlegislation. Paragraphs (10) and (24) to (27) have been repealed by Section 2 of the CRA.
Schedule 2: The reference test
1.65 Schedule 2 sets out the reference test that is to be used for determining
compliance with the three packers’ rules.
1.66 The preliminary tests on measuring container bottles are no longer required.
However, it is considered good practice to carry them out if a templet is available prior toperforming a reference test.
1.67 It is recognised that the software used by Inspectors automatically randomly
selects the items to be used for the test for average. In this situation there is no need forthe ‘marking’ required by paragraph 2.9.
Schedule 3 : Tolerable negative errors
1.68 Schedule 3 sets out the values of the tolerable negative errors specified inRegulation 4.
Schedule 4 : The E-mark1.69 Schedule 4 displays the mark that may be applied to certain packages or outer
containers which meet the requirements of Regulation 5(3) and 6(3), respectively.
A copy of the E-mark in electronic form is available from: http://welmecwg6.org/
Schedule 5 : Application to bread: modifications of provisions and extension ofscope
1.70 Schedule 5 modifies the average system in its application to unwrapped bread andbread made up in open packs. In particular it removes labelling requirements and places
duties on the person baking or finishing the baking process rather than the packer in
relation to the predetermined quantity to which the bread has been made up rather thanto its nominal quantity. When loaves of bread are made up in quantities of, for example,
18

400g or multiples thereof, each batch is required to meet the three packers’ rules when
the bread has reached the ambient temperature. However, the baker may still carry out
checks on hot loaves straight from the oven using enhanced target weights of 430g or
840g.
1.71 The Schedule also provides that retailers who finish the baking process for partbaked bread may, by giving written notice to their local weights and measures authority,choose not to have the bread treated under the average system. It would then be subject
to the minimum rules under Part IV of the Weights and Measures Act 1985, which
would require the quantity to be at least that stated, but it would not be subject to thespecific record keeping requirements of the average system. Notification may be madeeither through the trading standards service acting as Primary Authority or Home
Authority. Retailers who do not have a Primary Authority or Home Authority may
instead contact their local authority trading standards department.
1.72 In addition, bakers of unwrapped and open packed bread from 1 October 2015
are no longer required to keep records of weight checks as provided in Regulation
9(1)(b)(ii) (duty to keep records). Transitional provisions apply for those bakers whocurrently hold a “small bakers” exemption, whereby the exemption from Regulation
9(1)(b)(ii) continues to apply.
Schedule 6 : Exemptions from quantity marking
1.73

This Schedule has been revoked by Regulation 38 of the Food Regulations 2014as it is incompatible with FIC. However an exemption for sugar below 20 g has
been retained (see paragraph 1.9 above).

19Annex B
Suitability of Measuring or Checking Equipment
1.
All measurements and checks are required to be performed with equipment
which is suitable for the purpose for which it is being used (i.e. measuring or checking
that packages comply with the three packers’ rules). This will enable EC verified
automatic checkweighers, typically end-of-line automatic checkweighers (ACWs), to be
used for checking pre-packages even though such equipment has not been prescribedand stamped under UK regulations.
2.
The determination of whether a particular instrument is suitable will depend on
the circumstances of the case and the nominal quantity of the product packed. It will beessential for consideration to be taken of the scale interval which must be reasonable forthe nominal quantity of the package filled. The size and capacity of the instrument mustalso bear a sensible relationship in respect of the scale interval to the quantity being
measured.
3.
As a general rule, equipment that enables the quantity to be determined to 0.2
TNE will be appropriate. Although the use of less sensitive equipment is not prohibitedan allowance for the greater possible errors will require the quantity control system tohave a higher target quantity or set point – this will result in requiring a give away to bemade to ensure that the packages comply with the three packers’ rules.
4.
These Regulations require only that equipment used for checking or making up
packages be suitable for the purpose to which it is being put. There may be otherrequirements under measuring instrument legislation that also apply. Types ofequipment likely to be suitable for measuring or checking purposes may fall within thescope of the following legislation, but this list is not exhaustive:

The Non-automatic Weighing Instruments Regulations 2000 (SI 2000 no 3236)



The Non-automatic Weighing Machines Regulations 2000 (SI 2000 no 932)



The Weighing Equipment (Automatic Gravimetric Filling Instruments)
Regulations 2000 (SI 2000 no 388)



The Weighing Equipment (Automatic Catchweighing Instruments) Regulations
2003 (SI 2003 no 2761)

Measuring Equipment (Capacity Measures and Testing Equipment)
Regulations 1995 (S.I. 1995/735)



The Measuring Container Bottles (EEC Requirements) Regulations 1977 (SI1977 no 932) with an appropriate templateThe Measuring Instruments (Automatic Discontinuous Totalisers) Regulations
2006 SI 2006/1255

20



The Measuring Instruments (Automatic Catchweighers) Regulations 2006 SI
2006/1257



The Measuring Instruments (Automatic Gravimetric Filling Instruments)
Regulations 2006 SI 2006/1258



The Measuring Instruments (Beltweighers) Regulations 2006 SI 2006/1259



The Measuring Instruments (Capacity Serving Measures) Regulations
2006 SI 2006/1264

5. In order to clarify whether non automatic weighing instruments (NAWI) being used
for making up and checking packages are suitable it was agreed (at original publicationdate) by the Local Authority Coordinators of Regulatory Services and the National
Weights and Measures Laboratory that:
1. All new NAWI used for the first time for either making up or checking
prepackages, for the purposes of Regulation 9 of the Regulations, on or after 6th
April 2006 must be verified before use
2. All equipment legally in use under the 1986 Regulations prior to 6th April 2006
for the purposes of making up or checking prepackages for section 49 Weights
and Measures Act 1985, can continue under the old regime. This permits
unstamped NAWI to be used for checking prepackages - but not for making up
packages.
3. Second-hand NAWI first used for making up or checking prepackages
after 6th April 2006 must be verified under NAWI regulations 2000 (SI2006/3236).
6. Further advice on the use of checkweighers can be found in Appendix D
to the Packers' Code. While the rules in Appendix D are no longer mandatory theydescribe control procedures that may be helpful for packers in determining the suitabilityof checkweighing machines and the rigorousness of checking systems.
7. Templates used with measuring container bottles may be graduated in millilitres or
millimetres. Where in the latter unit of measurement, the template must be used with aconversion chart and the record of checks must show the quantity in volume (notmillimetres) in order for the packer or importer to show that they have complied with
their duties. Templates complying with the recommendations in Appendix E of the
Packers’ Code will be suitable.

21Annex C
Quantity Control Systems
1.
The Packers’ Code provides advice and background material which may be
helpful in designing or assessing quantity control systems. In particular, Annex C of theCode provides advice on control by sampling, and Annex D on control by measurement,
Appendix F sets out an “off the peg” control system that can be adopted directly, andAppendix G provides a procedure for assessing an existing system. The advice andworked example below may also be found helpful.
Control by Sampling2.
Where the packing process variability (standard deviation) is always less than
0.5TNE of the product then the average requirement is the most critical packers’ rule.
3.
Where the variability exceeds 0.5 TNE then the target quantity always needs toexceed the nominal (labelled) quantity in order to meet all three packers’ rules.
4.
To take into account the variability of the process, the target quantity must be thegreater of:- the nominal quantity (Qn),- Qn – TNE + 2 s,(where s = standard deviation of process), or- Qn – 2TNE + 3.72 s
5.
Where the number of items sampled during a production period is less than 50,
then a sampling allowance will need to be added to the target quantity in order to makethe system as robust as the reference test in detecting deficiencies. A production period
is taken as being the time taken to produce 10,000 packages, with a minimum of 1 hour
and a maximum of 1 normal day or shift. The appropriate allowance can be found in
Table C1 of the Packers’ Code. An example on setting target quantities and action limits
is provided below.
6.
Other allowances may have to be made (e.g. to take into account volume
changing with temperature). For further guidance on this issues see Appendix C of the
Packers’ Code.
Checkweighers
7.
Set points need to be set to ensure that all three packers’ rules are complied with
continuously, and needs to take into account the zone of indecision and variability of theweight of packaging (tare).
8.
Where the zone of indecision (ZoI) is greater than 0.25 TNE then the set pointshould be increased by 0.5ZoI – 0.125TNE.
9.
Where the tare variability (standard deviation) exceeds 0.1 TNE then a simple
way to address this is to add an allowance of 0.85s on to the set point.
10.
For further information on determining the zone of indecision and establishingappropriate set points see Appendix D of the Packers’ Code.

22

Annex C (contd.)
An example on setting target quantities and action limits
SCENARIO
A packer produces 200 g bags of sweets; the variation due to the packing process isdependent on the size of sweet. The process variation, stated as a standard deviation, iseither 4 g, 5 g or 6 g.
The packing line produces 4,000 bags an hour and the packer monitors the average
weight of the product by taking samples of five bags from the line every 30 minutes.
The average of each sample is calculated and used to determine when action is needed.
What should be the lowest target quantity the packer should aim for, and what should
the minimum action limit (1 in 1,000) for the sample mean be, for each of the three
processes?

CALCULATION
1.

Lowest Target Quantity
1.1. Process variation
1.1.1. The average range or standard deviation can be used to consider thisparameter. The standard deviation (SD) is more robust, as it is based on all thedata available. In either case, the following assumes that the distribution of thecontents of the packages is ‘normal’. If this assumption is incorrect the variationfrom normality also has to be considered.
1.1.2. In the scenario the variability of the filling process is given as a standard
deviation. In order to ensure all three packers’ rules are met, the highest of thefollowing has to be used to address this variability:
Qn
where
Qn
s
T1
T2
TNE

T1+2s

T2+3.72s

is the nominal (labelled) quantity
is the standard deviation of the filling process,is Qn – 1 TNE
is Qn – 2 TNE
is the tolerable negative error for the nominal quantity1.

WELMEC document 6.42 at paragraph E2.5 deals with this matter as above. It
is treated differently in the Packers Code3 at paragraph C15, but the result is thesame.
1 as stated in Schedule 3of the Weights & Measures (Packaged Goods) Regulations 2006, or paragraph 2.4
of Annex I of Directive 76/211/EEC.
2 WELMEC 6.4 Guidance on Controls by Competent Departments

23

For the various process variations the results are:Process
variation
4
5
6

Qn

T1+2s T2+3.72s Largest

200
200
200

199
201
203

196.88200.6
204.32200
201204.32

As can be seen from this table that which of the packers’ rules is critical depends
on the variability of the filling process. In this exercise the critical rule is:For s=4 g
For s=5 g
For s=6 g

the first rule, ensuring the average is correct,
the second rule, ensuring that the number of packages having agreater negative error than the tolerable negative error is
acceptable, andthe third rule, ensuring that there are no packages with a negative
error greater than twice the tolerable negative error produced.

1.1.3. The above ‘largest’ quantities would be acceptable as a target quantity if
there were no other issues that needed addressing. The scenario gave
information about the sampling plan the packer is using and so the adequacy ofthis needs to be considered.
1.2. Sampling Allowance
1.2.1. Generally the packer’s sampling plan is considered to be equivalent to thereference test if at least 50 items are sampled during the time that 10,000 packs
are filled (with a minimum time of 1 hour and a maximum time of 1 day or shift).
See the Packers Code, paragraph C22, or WELMEC 6.4, paragraph E.3
1.2.2. The scenario is that the packing line produces 4,000 bags an hour and thepacker monitors the average weight of the product by taking samples of five bags
from the line every 30 minutes. The average of each sample is calculated andused to determine when action is needed.
From this information, the time taken to fill 10,000 packs, referred to as the
Production Period, is equal to 10,000/4,000 hr = 2.5 hr.
The number of samples (of size 5, i.e. n = 5) taken during this period, sampling
every half hour, is k = 2.5/0.5 = 5.
Therefore the number of items sampled during the production period (time taken
to produce 10,000 packs) is kn = 5x5 = 25. As this is less than 50 a samplingallowance is needed to ensure that the packers system is as efficient as thereference test in detecting non-compliance.

3 The Code of Practical Guidance for Packers and Importers (Issue No 1), Dec1979 as editorially updated.

24

1.2.3. The appropriate allowance, which is used to enhance the target quantities
established in 1.1.2 above, is obtained by looking up the tables in the Packers
Code, Table C1, or WELMEC 6.4, Table E.3.
The allowances are based on 3 control system:- using Shewhart Control with Action Limit only (1 in 1,000),- using Shewhart Control with Warning Limit (1 in 40) & Action Limit (1 in
1,000), and- using Cusum control with h=5, f=0.5 (as per BS 5703)
The exercise indicates that only an Action Limit is used which is referred to as
Procedure A in the tables.
1.2.4. Looking at n=5 and k=5 for procedure A gives a sampling allowancefactor, z = 0.20. This factor is multiplied with the standard deviation of thepacking process to produce an allowance, which is added to the targets
determined in 1.1.2 above.
1.2.5. The minimum target quantity taking into account process variability andsampling becomes:
Process
SD
4
5
6

Qn

T1+2s

T2+3.72s

Largestzs=0.20s

Min Qt

200
200
200

199
201
203

196.88200.6
204.32200
201204.32

0.8
1
1.2

200.8
202
205.52

1.3. Other Allowances
1.3.1. The scenario does not give any indications that other allowances arenecessary but other issues that need to be considered include:- a ‘wandering average’,- storage allowance, particularly for desiccating products,- tare variability, where the quantity determination assumes a constant tareweight,- temperature, if the product is filled hot or cold and the volume changes when
determined at 200C.
Theses are considered in the Packers Code in paragraphs C21 to C25 and
WELMEC 6.4 in paragraphs E.5.1 to E.5.4.
2.

Action Limits
1.4.
The scenario asks for the ‘minimum action limit (1 in 1,000) for the
sample mean’. The distribution of the sample mean (of samples of size n) is
related to the distribution of the individual items (the process variability).
1.5.
If the process variability (standard deviation) is
and the number of items in a sample isthen the standard deviation of the distribution of the means,25snsometimes referred to as the standard error of the means, is
s/n
1.6.
The action limit, with a chance of 1 in 1,000 of exceeding, as with thenormal distribution comes at three times the standard error away from the target
quantity. Only the lower action limit is needed for legal metrology, although
upper limits may be set, for example for safety reasons (aerosols), or economic
reasons (duty on alcohol) – but the corresponding limit must be no nearer thetarget quantity than the lower one.
So for legal metrology the Action Limit should be no lower than Qt - 3 s/n
(If there was a warning limit of 1 in 40 being used this would be at 2 times thestandard error.).
An example is given in the Packers’ Code at paragraph C34, it is also covered in
WELMEC 6.4 at paragraph E.7.2.
Using the data from the exercise this gives:

Process
SD
4
5
6

Qn

T1+2s

T2+3.72s Largest

200.00200.00200.00199.00201.00203.00196.88200.60204.32200.00201.00204.32zs=0.20s

Min Qt3s/ 5

Action limit

0.80
1.00
1.20

200.80202.00205.52

5.37
6.71
8.05

195.4
195.3
197.5

RESULTS
Process Variation, s

Minimum Target Quantity (g)

4g
5g
6g

200.8
202.0
205.5

Minimum Action Limit for
the Mean (g)
195.4
195.3
197.5

[Note: The Packers’ Code, at Paragraph C34, suggests using 1.38s0 to determine theAction Limit, this gives results about 0.2 g different to the above.]26Annex D
Table showing the application of different quantity marking regimes
1.
To aid understanding of which legislative regime to apply to foods and non-foods
since the the implementation of FIC on 13 December 2014, the table below has been
produced.

Product Categories
Prepacked food within thescope of FIC (that is, any
single item for presentation
as such to the final
consumer and to masscaterers, consisting of afood and the packaging into
which it was put before
being offered for sale,
whether such packaging
encloses the foodcompletely or only partially,
but in any event in such a
way that the contents
cannot be altered without
opening or changing the
packaging)Must comply with FIC
quantity labelling
requirements.

Prepacked food towhich an ℮-mark is
appliedWeights and Measures(Packaged Goods)
Regulations 2006 as
amendedMust comply with PGRrequirements except thequantity labelling
requirements.

Must comply withPGR requirements.

Weights and Measures(Miscellaneous Foods)
Order 1988 as amended

Only in relation to prepacked honey where it
must be marked with net
weight.

Applicable Requirements

Regulation (EU) No
1169/2011 on theprovision of foodinformation to consumers(FIC)

Weights and Measures Act
1963 (Cheese, Fish, Fresh
Fruits and Vegetables,
Meat and Poultry) Order
1984 as amended

Weights and Measures(Intoxicating Liquor) Order1988 as amended

Must comply with
FIC, but also subject
to more specific rules
on quantity labellingunder PGR. Where
there is a conflict
PGR applies.

Non ℮-marked fooditems made up for
direct sale by way ofretail and/or made up
in advance in an open
container, loose foods,
or foods sold by way of
relevant wholesale

Prepacked non
food items whether℮-marked or not

N/A

N/A

N/A

Must comply with
the PGRrequirements.

N/A

N/A

Must comply with therequirements of the
Miscellaneous Foods
Order.
Must comply with therequirements of the
Weights and Measures(Cheese, Fish, Fresh
Fruits and Vegetables,
Meat and Poultry)
Order.

Must comply with therequirements of the 1988
Order except the quantity
labelling requirements in
Article 6.

Must comply withthe requirements of
the 1988 Order.

Must comply with therequirements of the1988 Order.

N/A

27

N/A

N/A

N/A