Croatia and the European Union have adopted the World Intellectual Property Organization (WIPO) Copyright Treaty. Croatia ratified the Treaty on 3 July 2000, with its provisions coming into force on 6 March 2002. Subsequently, the European Union ratified the Treaty on 14 December 2009, and it entered into effect on 14 March 2010.

Croatia and the European Union have adopted the World Intellectual Property Organization (WIPO) Performances and Phonograms Treaty. Croatia ratified the Treaty on 3 July 2000, with its provisions coming into force on 20 May 2002. Subsequently, the European Union ratified the Treaty on 14 December 2009, and it entered into effect on 14 March 2010.

The Directive 2016/943 on the protection of undisclosed know-how and business information (trade secrets) is key in harmonising national laws concerning trade secrets. In Croatia, the Directive was transposed in the Protection of Undisclosed Information with the Market Value Act of 2018.

According to the Ordinance on Manner and Conditions of Access and Shared Use of Electronic Communications Infrastructure and Other Associated Facilities (NN 36/16), passive sharing is mandated and is effective in both the mobile and fixed sectors.
In addition, Art. 3[2] of the Directive 2014/61/EU establishes that Member States shall ensure that, upon written request of an undertaking providing or authorised to provide public communications networks, any network operator has the obligation to meet all reasonable requests for access to its physical infrastructure under fair and reasonable terms and conditions, including price, with a view to deploying elements of high-speed electronic communications networks. Such written request shall specify the elements of the project for which the access is requested, including a specific time frame.

The Croatian government owns 2.9% of the shares of Hrvatski Telekom. It is reported that in December 2015, following the public auction, CERP sold 500,000 of its shares in the Company (0.6% of HT d.d. share capital) via the Zagreb Stock Exchange trading system. Following this sale of shares, CERP reduced its holding from 3.5% to 2.9%.

It is reported that Croatia mandates functional and accounting separation for operators with significant market power (SMP) in the telecom market.

It is reported that the Croatian Regulatory Authority for Network Industries (HAKOM), the executive authority for the supervision and administration of services in the telecommunications sector, is independent from the government in the decision-making process.

Art. 85 of the Utilities Directive (2014/25/EU) contains provisions allowing contracting public entities to reject foreign goods not covered by any EU international commitments from its tender procedures. In these cases, a tender submitted for the award of a supply contract may be rejected where the proportion of the products originating in third countries exceeds 50% of the total value of the products constituting the tender (Art. 85.2). Additionally, in cases of equivalent offers, the provisions provide for a preference for European tenders and tenders covered by EU's international obligations. In practice, this possibility has rarely been used.
In Croatia, the Directive has been transposed with the Public Procurement Act NN 120-16.

It is reported that the extensive use of state-owned companies limits the impact of ongoing procurement reforms to promote competition for public funds and increases the risk of conflicts of interest. Moreover, despite major progress in increasing transparency, corruption remains a significant concern, considering that, for instance, some stakeholders report the existence of discriminatory technical specifications in public procurement tenders.

Croatian law prohibits any discrimination between investments on the basis of nationality. Foreign investment rules follow a reciprocity principle.

Art. 17 of the Patent Act establishes that foreign companies must act through a representative in order to register a patent with the Croatian Intellectual Property Office. In addition, a translation of the patent shall be provided in Croatian at least two months after filing.

Croatia is a party to the Patent Cooperation Treaty (PCT).

The EU Directive on Audiovisual Media Services (AVMS) covers traditional broadcasting services as well as audiovisual media services provided on-demand, including via the Internet. Art. 13.1 provides for Member States to secure a minimum 30% share of European works in the catalogues as well as "ensuring prominence" of those works. "Prominence" involves promoting European works by facilitating access to such works using any appropriate means to ensure their prominence. The Directive has been implemented by Member States in different ways, ranging from very extensive and detailed measures to a mere reference to the general obligation to promote European works.
In Bulgaria, the EU Directive was transposed into domestic law through the amendment of the Radio and Television Act of December 2020 (SG No. 109 of 2020). According to Art. 19 of the Act, providers of on-demand audiovisual media services must ensure that at least 30% of their catalogues consist of European works, which must be given prominence. The share of European works is calculated on an annual average basis, based on the number of titles in the service's catalogue.