According to the Act No. 360/1992 Coll., only licensed architects and engineers may be partners of a public company established for the purpose of carrying out architectural or engineering services. In the case of limited liability companies, the majority of the company's partners and executives must be licensed architects and engineers. Only qualified professionals who are Czech and EU/EEA nationals and Czech Republic/EU/EEA permanent residents are admitted as licensed architects and engineers. According to Czech Republic's Act No. 326/1999 Coll. on the residence of foreigners in the territory of the Czech Republic, in general, only foreigners who have resided continuously in the territory for a period of at least 5 years may be granted a permanent residence permit (some exemptions exist for humanitarian purposes, family members etc.). However, architects and engineers can also exercise such services not only as liberal professionals under the Act No. 360/1992 Coll. but also as entrepreneurs exercising the "construction planning'' business as listed in the Attachment 2 of § 23 a 24 of the Act No. 455/1991 Coll. or as employees of a company exercising the construction planning business. No restriction applies on the company exercising the construction planning business but in order to be able to provide engineering services, such company has to employ a licensed engineer according to the Act No. 360/1992 Coll. For the purposes of the OECD FDI RRI, only the pre-establishment residency requirement is considered a restriction on foreign investment. Scores are adjusted to reflect the somewhat limited scope/implication of such barrier to foreign investment in architectural and engineering services.
"§ 2
(1) For the purposes of this Act, authorization means the authorization of natural persons to perform professional activities in construction or professional activities in connection with spatial and functional changes in the territory.
(2) Authorization in the relevant field, or specialization according to this Act authorizes the performance of selected activities 1a ) in construction. Authorization is not a condition for the performance of these activities by the persons listed in Part Six of this Act.
(3) Persons who have been granted authorization pursuant to this Act (hereinafter referred to as "authorized persons") are obliged to carry out their activities in accordance with this Act.
(4) Authorization according to this Act is a special condition for running a business.
(5) Legal and natural persons conducting business according to the relevant regulations may perform selected activities in construction only if they ensure the performance of these activities by authorized persons according to this Act, unless this Act provides otherwise.
PART TWO - AUTHORIZATION
§ 3
Authorized persons in the sense of this law are:
a) authorized architect, b) authorized engineer, c) an authorized technician.
§ 4
Authorized architect
(1) An authorized architect is one who has been granted authorization pursuant to this Act and is entered in the list of authorized architects maintained by the Czech Chamber of Architects.
(2) The Czech Chamber of Architects grants authorization for fields of study to persons according to paragraph 1
a) architecture, b) territorial planning, c) landscape architecture. [...]
§ 5
Chartered Engineer and Chartered Technician
(1) An authorized engineer is one who has been granted authorization pursuant to this Act and is entered in the list of authorized engineers maintained by the Czech Chamber of Authorized Engineers and Technicians active in construction.
(2) An authorized technician is one who has been granted authorization pursuant to this Act and is entered in the list of authorized technicians kept by the Czech Chamber of Authorized Engineers and Technicians active in construction.
(3) The Czech Chamber of Authorized Engineers and Technicians active in construction grants authorization for fields of study to persons according to paragraphs 1 and 2
a) building structures, b) transport structures, c) water management and landscape engineering structures, d) bridges and engineering structures, e) technological equipment of buildings, f) building environment technology, g) statics and dynamics of buildings, h) urban engineering, i) geotechnika. j) fire safety of buildings, k) buildings for fulfilling the function of the forest.
[...]
Grant of authorization
§ 7
(1) On the basis of a written request, the Chamber will grant authorization to those who
a) is a citizen of the Czech Republic, or
b) is a national of a member state of the European Union, another contracting state of the Agreement on the European Economic Area or the Swiss Confederation (hereinafter referred to as the "member state") or his family member 3a ) , or is a national of another non-member state, if he
1. in the Czech Republic or another member state, the legal status of a long-term resident in the European Community 3b ) has been granted ,
2. residence in the Czech Republic was permitted for the purpose of scientific research 3c ) ,
3. has been granted asylum or supplementary protection in the Czech Republic, or is a family member of the person mentioned in point 1 or 2, if he has been granted long-term residence in the territory of the Czech Republic 3d ) or granted asylum or supplementary protection for the purpose of family reunification 3e ) ,
4. residence in the Czech Republic or another member state was permitted for the purpose of study, student exchange stays, unpaid vocational training or voluntary service 3f ) ,
5. has been permitted to stay in the Czech Republic or another member state because he is a victim of human trafficking or has received assistance for illegal immigration and is cooperating with the relevant authorities 3g ) 
[...]
§ 15a
Company
(1) If freelance architects or freelance engineers practice their profession together 12 ) , they shall regulate their mutual relations by means of a written contract. Associates may be exclusively freelance architects or freelance engineers.
(2) The partners must have a common seat.
§ 15b
A public company established for the purpose of carrying out a profession
(1) If authorized persons exercise their profession as partners of a public company, only authorized persons must be partners.
(2) Authorized persons who are partners of the company according to paragraph 1, perform professions on behalf of the company and on its account; the provisions of this Act on the responsibility of authorized persons for the performance of their profession are not affected by this.
§ 15c
Limited liability companies established for the purpose of carrying out a profession
(1) If authorized persons perform a profession as partners of a limited liability company, established for the purpose of performing a profession pursuant to this Act, the majority of authorized persons must be represented among the partners and among the executives in such a company; if the given company has a single partner or manager, he can only be an authorized person.
(2) Authorized persons who are partners of the company perform professions on behalf of and on behalf of the company; the provisions of this Act on the responsibility of authorized persons for the performance of their profession are not affected by this provision.
[...]
PART SIX - PERFORMANCE OF ACTIVITIES BY CITIZENS OF THE EUROPEAN UNION
§ 30a
Basic provision
(1) Selected activities in construction (hereinafter referred to as "selected activity") may also be carried out in the Czech Republic by persons listed in § 7 paragraph 1 letter b), who obtained the necessary qualification for the selected activity in another Member State.
(2) The persons listed in paragraph 1 may carry out the selected activity in the Czech Republic as resident architects, resident engineers and resident technicians active in construction (hereinafter referred to as "established persons") or as guest architects, guest engineers and guest technicians active in construction (hereinafter only "guest persons").
(3) An established person means a person referred to in paragraph 1 who continuously performs a selected activity in the territory of the Czech Republic or has a business or an organizational component in the territory of the Czech Republic.
(4) Visiting person means a person referred to in paragraph 1 who is established in the territory of another member state and performs a selected activity temporarily or occasionally in the territory of the Czech Republic.[...]" (Act No. 360/1992 Coll. of the Czech National Council on the exercise of the profession of authorized architects and on the exercise of the profession of authorized engineers and technicians active in construction (Authorization Act)[google translation])
----------------------
"TITLE IV - PERMANENT RESIDENCE IN THE TERRITORY
Part 1
Section 65
(1) A foreigner is entitled to stay in the territory as part of permanent residence on the basis of
a) permanent residence permit, or
b) the decision of the competent authority to entrust this foreigner to substitute education 10c ) , if the condition according to § 87 paragraph 1 is met.
(2) The provisions of this chapter do not apply to a citizen of the European Union 1b ) and, with the exception of § 83 to 85, to his family member.
A permanent residence permit
Section 66
(1) A permanent residence permit is issued to a foreigner without the condition of previous continuous residence in the territory
a) who requests the issuance of this permit for humanitarian reasons, in particular
1. if he is the spouse of an asylum seeker and the marriage took place before the asylum seeker entered the territory,
2. if he is a minor child of an asylum seeker or a child who is dependent on the care of an asylum seeker, if he does not apply for asylum, or
3. if he was a citizen of the Czech Republic in the past,
b) who requests the issuance of this permit for other reasons worthy of special consideration,
c) at his request, if his stay in the territory is in the interest of the Czech Republic, or
[....]
Section 68
(1) A permanent residence permit shall be issued upon application to a foreigner who has resided continuously in the territory for a period of at least 5 years on the date of submission of the application.
2. the foreigner applied for the issuance of a permanent residence permit during the period for departure established due to the termination of the temporary residence of a family member of a citizen of the European Union referred to in § 87f paragraph 5, [...]
(4)A permanent residence permit will also be issued upon request to a foreigner who has fulfilled the condition of 5 years of continuous residence in the territory of the member states of the European Union as a holder of a blue card, if as a holder of a blue card he has continuously resided in the territory for a period of at least 2 years; the period of stay in the territory of another member state of the European Union is not included in the period of 5 years of continuous residence in the territory of the member states, if the holder of the blue card issued by this member state of the European Union stayed in its territory for a period of less than 18 months. Periods of absence of the blue card holder in the territory of the member states of the European Union are also included in the required period of continuous residence, if the individual periods of absence did not exceed 12 consecutive months and if the total did not exceed 560 days. This provision shall similarly apply to family members of the blue card holder,
[...]
Part 2
Legal status of a long-term resident in the European Community in the territory
Section 83
(1) In a decision on a permanent residence permit, the Ministry grants a foreigner the legal status of a long-term resident in the European Community in territory 7c ) (hereinafter referred to as "resident in the territory"), if the foreigner
a) fulfilled the condition of 5 years of continuous residence in the territory on the date of application submission (§ 68),
b) did not seriously disrupt public order or threaten the security of the state or another member state of the European Union and
c) proved the provision of funds for permanent residence in the territory pursuant to Section 71.[...]" (Act No. 326/1999 Coll. on the residence of foreigners in the territory of the Czech Republic and on the amendment of certain laws [google translation])
Act No. 360/1992 Coll. of the Czech National Council on the exercise of the profession of authorized architects and on the exercise of the profession of authorized engineers and technicians active in construction (Authorization Act) [google translation] 
Act No. 326/1999 Coll. on the residence of foreigners in the territory of the Czech Republic and on the amendment of certain laws [google translation]
[<a href="https://www.zakonyprolidi.cz/cs/1992-360#p5">Act</a>]