Law No. 412/2005 Coll., on the protection of classified information and on security capability shall be stored in § 45, that shielding chambers intended for the protection of classified information are certified by the Office. The certification of the shielding chamber shall be carried out in accordance with: § 46 a § 51 the said Act and pursuant to Sections 32 - 36 decrees No. 523/2005 Coll., on the security of information and communication systems and other electronic equipment handling classified information and on the certification of shielding chambers.

The application for certification of the shielding chamber shall contain:

  • the identity of the applicant,
  • the name and surname of the applicant’s liaison officer and contact details;
  • the degree and number of the certificate of the entrepreneur (if the applicant is an entrepreneur),
  • marking and positioning of the shielding chamber,
  • identification of the manufacturer of the shielding chamber.

In order to carry out the certification of the shielding chamber, the applicant may, after prior consultation with the head of the TEMPEST NÚKIB department, submit a report on the result of the measurement and evaluation carried out by the workplace with which the NÚKIB has concluded a contract for such activity (according to the law No. 412/2005 Coll.).

The certification of the shielding chamber is carried out by measuring the attenuation properties of the shielding chamber and network or data filters and comparing them with safety standards. The applicant shall ensure that conditions are in place for the certification measurement of the shielding chamber, including network and data filters. (i.e. ensure disconnection of the shielding chamber from the data and power lines when performing measurements)

If the NÚKIB ascertains the capability of the shielding chamber to protect classified information, it shall issue a shielding chamber certificate for it. Otherwise, it will decide not to issue a certificate.

The validity of the shielding chamber certificate is limited to a maximum of 5 years.

If the shielding chamber is to be used immediately after the expiry of its certificate, the applicant is obliged to apply to the NÚKIB for certification of the shielding chamber at least 12 months before the expiry of the original shielding chamber certificate.