You need to join GS1 Bulgaria as member and acquire a company prefix This prefix allows you to identify your products with internationally unique numbers represented in barcode form.

Any company, organization or sole trader who wants to take benefit off the world’s only open, global standards for products identification must join the non-for-profit GS1organization. GS1 Bulgaria has a statute of a Council at the Bulgarian Chamber of Commerce and Industry (BCCI), witch is a not-for profit organization representing interests of manufactures and retailers. Virtually everyone in the supply chain, including the likes of transport operators and packaging manufacturers should consider GS1 membership to improve efficiency and to maintain their competitive edge. Where a large organisation has multiple business divisions, each independent business unit should join GS1 and have its own membership number. This ensures that each business unit is uniquely identified when it produces or markets products, issues invoices, and receives payments. To become a member of GS1 Bulgaria, please complete the registration form.

Please refer to the table in menu Membership>Fees showing the tariff for acquiring a GS1 company prefix and the annual membership fee
The subscription fee is based on the annual turnover of the applicant.
The size of the membership fee depends on what range of products that the company will be marking.
The subscription fee shall be paid along with the application. The membership fee is due in the year post application, and each member shall receive a notification of the amount due.
It takes from 2 to 5 working days to process the documentation.

Each item (difference in colour, size, content ext.) is marked with an unique identification number. We offer We offer a block of 100, 1000, 10 000 or 100 000. You decide how many are suitable for you company depending on your production range.

GS1 Bulgaria offers individual identification numbers in the form of GTIN-8. The maximum number per company is 5, as these numbers are limited for each MO.

No. The role of GS1 Bulgaria is to administer the barcoding system, which gives your company access to the global market and to your partners the possibility to automate the process in supply chain.

No, we recommend you keep an up-to-date record of the numbers you have assigned to your products in you local data base.

A check digit is a result of a mathematical calculation performed on the preceding digits. The check digit is used during scanning to verify that the barcode was correctly read.

You can calculate the check digit automatically online by using the GS1 Bulgaria.

By simply entering your GS1 company prefix and the article number you will get the check digit for the whole GTIN.

NO. The first three digits are the prefix of the relevant GS1 Member Organisation. Companies are not required to register in the GS1 MO where the company’s production site is. They register with the MO where the company is seated and is registered. The fact that a barcode of a product starts with 380 does not mean that the particular product was manufactured in Bulgaria, but that the company that has the trade mark is registered in GS1 Bulgaria.

Please see for a full list of GS1 MO prefixes.

For barcodes that start with 380 you will find the information online in the GS1 Bulgaria Members Catalogue. For others simply visit or via our website – search in global register (GEPIR).

Not true, in general. The bar code simply represents the number shown below it, which in turn simply identifies the item uniquely. All the information about the product is held on a computer database. The only exceptions are the EAN-13 and UCC-12 Numbers for retail Variable Measure Trade Items and coupon numbers, which include the price or measure of the item or value of the coupon.

No. GS1 Member Organisations Company Prefixes that may vary between six and ten digits, depending on the company’s needs. The first two or three digits indicate the organisation allocating the company number that follows. Moreover, the company prefix not always identifies the manufacturer, but the company that assigned the number (typically the brand owner).

No. The GS1 System allows for three different bar code symbologies – EAN-13, ITF-14 and GS1-128 to be used on outer cases, which do not cross a retail point-of-sale. The numbering system is designed to be used for all packaging configurations, and the different symbols are used according to information requirements, scanning environment and the printing materials being used.

It is not meant to. The GS1 System is designed especially for open trade and will often be used alongside an internal system (A translation table may be needed). Some companies will replace their internal system, but using the GS1 System (which is designed for different computers to use easily) does not mean necessarily abandoning an internal system that is purely for internal use.

No, EAN /UPC, ITF-14 and GS1-128 Bar Codes have a standardised data content, which means they can be used by any company with an GS1 based System, and not be confused with any other symbology. Other bar codes, like for example code 39 do not have a multi-industry standardised approach to the data they contain, and so are only really usable in controlled systems where they will not be confusing to interpret.

Scanning is simply the process of ’reading’ a bar code with a scanner. It proves nothing about the quality of the bar code, only that it works when scanned with that particular scanner.

Verification involves scanning the bar code with special equipment called a verifier to obtain a detailed analysis of the reflective properties of the barcode so that an objective measurement of its quality, and therefore its scanning reliability can be obtained.

Larger is always better for good print quality. We suggest 100% magnification, and increasing up to 200% or decreasing to 80% as print quality allows. Many factors influence the size of barcode symbols; the most important of which is the print quality achievable on the label, or packaging material. Some printing methods are not precise enough to produce quality symbols at smaller sizes. Because of this designers should discuss proposed symbol size with printers before making a decision on size.

The term “product changes” means: any change or improvement during the life of a product, decided by the manufacturer of the product. In the cases described below, the assumption is made that the “new” product replaces the old one. Should the manufacturer decide to create a variant (e.g. with different ingredient) in parallel with the standard product and then a separate unique number has to be allocated.

Minor product changes or improvements do not require the allocation of a different GTIN.

Examples: label artwork redesign, minor product description change with contents unchanged, minor ingredients change. When the product changes affect the product quantity, the product dimensions, the packaging type, the product name or brand, the product description, a separate unique number (GTIN) must be allocated.

Please read carefully the GTIN Allocation Rules.

DataBar is the newly adopted name for RSS новото RSS – Reduced Space Symbology. GS1 DataBar will carry more information in the same space or volume of data in a reduced space, which will benefit both retailers and manufacturers. The data structure will be the same as for GS1 – 128 meaning you can enter additional information such as batch/lot number, expiry date, weight exc. This type of barcode will be useful for marking small size articles, variable measure trade item, coupons, and will also be used during traceability.

For more information on GS1 DataBar please visit

RFID stands for Radio Frequency Identification. . It is a technology that has existed for decades. At a simple level, it is a technology

that involves tags that emit radio signals and devices called readers that pick up the signal.

RFID technology is a fundamental element of the EPCglobal network.

The Electronic Product Code (EPC) is the next generation of product identification. The EPC is a unique number, compact license plate that uniquely identifies objects (items, cases, pallets, locations, etc.) in the supply chain. Like many current numbering schemes used in commerce, the EPC is divided into numbers that identify the manufacturer and product type. But, the EPC uses an extra set of digits, a serial number, to identify unique items. The EPC is the key to the information about the product it identifies that exists in the EPCglobal network.

The EPCglobal network is a set of technologies that enable immediate, automatic identification and sharing of information on items in the supply chain. In that way, the EPCglobal network will make organisations more effective by enabling true visibility of information about items in the supply chain. The EPCglobal network uses radio frequency identification (RFID) technology to enable true visibility of information about items in the supply chain. The EPC number sits on a tag comprised of a silicon chip and an antenna, which is attached to an item. Using radio identification technology (RFID), a tag communicates its number to a reader. The reader then passes the number to a computer or local application system, known as the Object Name Service (ONS). ONS tells the computer systems where to locate information on the network about the object carrying an EPC, such as when the item was produced.

For more information on EPCglobal network, definitions of the components and procedure for application and receiving an EPC manager number please visit

Yes. The GS1 System was designed around the American U.P.C. System, so the American symbols work perfectly in all GS1 Systems. Companies in the US and Canada as well as the rest of the world simply apply U.P.C. Bar Codes to all their products and experience no problems.

More detailed information can be found at the GS1 website:  or by contacting a local MO at