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CPV Codes & Classification

CPV Additional Object

A CPV additional object is any supplementary CPV code assigned to a procurement notice beyond the single mandatory main object code, used to describe secondary or ancillary elements of the contract scope and enabling suppliers in adjacent markets to discover notices that are partly relevant to their offer.

Quick answer

A CPV additional object is any supplementary CPV code assigned to a procurement notice beyond the single mandatory main object code, used to describe secondary or ancillary elements of the contract scope and enabling suppliers in adjacent markets to discover notices that are partly relevant to their offer.


A public procurement contract rarely concerns exactly one product or service in isolation. When a contracting authority needs to describe secondary elements of its contract scope, it uses additional CPV codes alongside the mandatory main object code. These additional objects signal to suppliers in adjacent markets that part of the contract touches their area, even if the primary scope lies elsewhere.

What is a CPV Additional Object?

The CPV additional object field on a contract notice accepts one or more CPV codes beyond the single mandatory main object. There is no fixed maximum on the number of additional objects, though in practice most notices carry zero to five additional codes. The additional object codes are drawn from the same Common Procurement Vocabulary as the main object and must be selected at the appropriate level of specificity.

On Tender Electronic Daily (TED), additional object codes appear in field II.1.2 alongside the main object. The same field structure is replicated on UK Find a Tender and on most national procurement portals across Europe. Directives 2014/24/EU, 2014/25/EU, 2014/23/EU, and 2009/81/EC all permit the use of additional codes; their use is optional rather than mandatory.

Additional objects may describe: component parts of a contract lot; ancillary works or services accompanying the primary delivery; related supplies required alongside a services contract; or secondary activities that the winning supplier is expected to carry out as part of a broader scope. A facilities management contract, for example, may carry a main object code for facilities management services and additional codes for cleaning, security, and grounds maintenance services individually.

Why it matters for bidders

Monitoring additional object codes in addition to main object codes significantly widens your opportunity discovery net. If you supply IT infrastructure equipment and a local authority issues a building renovation contract with an additional object code for IT cabling, you may be a relevant subcontractor or a supplier for a later stage of the project, even though your code does not appear as the main object.

Additional object awareness is also important for consortia and partnership bids. A main contractor reviewing a notice with multiple additional object codes can identify which specialist subcontractors to approach. If your company is a specialist in one of the additional object areas, being visible and responsive when main contractors search for partners gives you access to contracts you could not win as a prime.

Understanding additional objects also guards against false positives. A notice with your code as an additional object but an unrelated main object may describe a very large contract where your scope is a minor component. Reading the full notice and assessing the relative weight of each scope element prevents wasted bid effort.

Example

A Belgian university issues a contract for the refurbishment of research laboratories. The main object code is 45214400-4 (university construction work). Additional object codes include 38000000-5 (laboratory, optical, and precision equipment) and 71300000-1 (engineering services). A scientific equipment supplier monitoring code 38000000-5 on TED discovers this notice through the additional object field and assesses whether the equipment supply element is large enough to warrant a direct bid or a subcontracting approach.

Frequently Asked Questions

Are additional object codes searchable on TED?

Yes. TED's advanced search interface allows searching across both main object and additional object fields, either together or separately. Many national portals also support additional object searching. Procurement platforms like Bidovate surface both fields to ensure you do not miss notices where your code appears only as an additional object.

If I bid on a contract where my scope is only an additional object, am I bidding for the whole contract?

A tender must cover the contract as a whole unless the notice specifies lots. If you are a specialist supplier and the contract is structured as a single lot covering the full scope, you would typically bid as part of a consortium or as a subcontractor to a prime. Some contracts are deliberately structured as lots so that specialist suppliers can bid for the lot relevant to them.

How do I know which contracts include my code as an additional object?

Use a CPV code lookup or procurement platform that searches across both main and additional object fields. Reviewing your search results over a period of months will reveal how frequently your codes appear as additional objects versus main objects, helping you calibrate your monitoring and partnership strategy.

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Related terms

Common Procurement Vocabulary (CPV)

The Common Procurement Vocabulary is the single classification system for public procurement across the European Union, providing a standardised set of codes that describe the subject matter of any contract for works, supplies, or services published on TED or national portals.

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CPV Code

A CPV code is the individual numeric identifier assigned to a procurement notice to describe its subject matter, drawn from the Common Procurement Vocabulary classification system and structured as eight significant digits plus one check digit covering works, supplies, and services.

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CPV Main Object

The CPV main object is the single primary CPV code that a contracting authority must assign to every procurement notice to identify the principal subject matter of the contract, forming the cornerstone of classification and the primary index field used by procurement portals and search tools.

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Supplementary CPV Vocabulary

The supplementary CPV vocabulary is a secondary set of alphanumeric codes used alongside main CPV codes to add qualitative characteristics, dimensions, or procedural attributes to a procurement notice without changing its primary classification, enabling finer description of the contract subject matter.

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CPV Category

A CPV category is the fourth hierarchical level of the Common Procurement Vocabulary, identified by the first five digits of a CPV code, narrowing a class into specific types of product or service and representing the level at which many contracting authorities make their final code selection for published notices.

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