Travelers who are fully vaccinated or ill a) those who have completed at least fourteen (14) days before COVID-19 coronavirus vaccination and demonstrate a vaccination certificate with simultaneous identification of the holder and b) those who have completed at least ten (14) days vaccination for COVID-19 coronavirus with one (1) dose of vaccine due to their coronavirus COVID-19 disease and demonstrate a certificate of complete coverage - recovery and vaccination with simultaneous identification of the holder, if they of the Regional Unit where they have their headquarters show: a) vaccination certificate, through the website https://www.gov.gr/ipiresies/ugeia-kai-pronoia/koronoios-covid-19 or, if it is a foreigner, according to with the provisions of the items D1a / GP.oik. 59928 / 30.9.2021 (Β '4515) joint ministerial decision, as in force from time to time, if they have completed at least fourteen (14) days before the COVID-19 coronavirus vaccination or b) disease certificate issued thirty (30) days after first positive test and its validity lasts up to one hundred and eighty (180) days after it. If a repeat PCR test is performed after one hundred and eighty (180) days plus one (1) day and is positive, the disease certificate is valid from the date of the PCR repeat test and lasts up to one hundred and eighty (180). ) days after him. Travelers who are not fully vaccinated or ill, regardless of destination, if they perform routes where the boarding or disembarkation point is outside the boundaries of the Regional Unit where they are based, undergo a diagnostic test up to forty eight (48) hours before their trip. with the use of rapid coronavirus antigen detection COVID-19 (rapid test) in private diagnostic laboratories, as defined in p.d. 84/2001 (A '70), either in private clinics or in pharmacies or to a private doctor, at their own expense. The above obligations include minors from twelve (12) years and over. Especially minors from twelve (12) years old and over, who travel by ship, boat and sea taxi to schools and other necessary school activities, can make their travels by conducting a self-test that takes place up to twenty four (24) hours before the scheduled travel time. Minors from four (4) to eleven (11) years old, can make their travels by performing a self-test that takes place up to twenty-four (24) hours before the scheduled travel time (free availability). The above diagnostic tests are performed in private diagnostic laboratories, as defined in p.d. 84/2001 (A '70), either in private clinics or in pharmacies or in a private doctor, at the expense of the passengers, and are proved by a mandatory demonstration of a negative diagnosis certificate on paper or electronically. Especially the self-test statement is issued through the website gov.gr. The above certificates / certificates are displayed either printed by the digital platform www.gov.gr or in digital form with simultaneous identity check of the holder. The above certificates (vaccination, illness, diagnostic and self-diagnostic test) are displayed by travelers in combination with a police ID or driver's license or passport or other proof of identity, in order to carry out an identity check on them before issuing their tickets and in the above means of transport, by the personnel of the respective service / company or by personnel of security companies. Carry out a diagnostic test twice (2) a week for all employees who are not fully vaccinated or sick, who provide work with a physical presence inside or outside the premises of their service, by the method of molecular test (PCR) or by using rapid detection of COVID-19 coronavirus antigen (rapidtest) in private diagnostic laboratories, as defined in p.d. 84/2001 (A '70), either in private clinics or in pharmacies or to a private doctor, at their own expense. Where there are no private diagnostic laboratories or private clinics or pharmacies or private doctors, diagnostic tests are performed by municipal clinics. Unless a passenger is wearing a mask, he is not allowed to enter the means of transport. , regardless of flag, the organization and holding of entertainment events, as well as participation in them. In case of violation are imposed: a) In passengers and crew members an administrative fine of one thousand (1,000) euros. b) To shipowners or shipowners or ship managers, as well as to masters or captains of ships / vessels: 1st violation: - Administrative fine of fifty thousand (50,000) euros. 2nd violation: - Administrative fine of two hundred thousand (200,000) euros. a) Completeness on passenger and passenger / car ferries: up to 80% of the permitted number of passengers or 85% if the ship has cabins. The passenger and crew cabins can accommodate up to four (4) people, if they are either spouses / cohabitants, first or second degree relatives or people with disabilities after their companion, otherwise two (2) individual passengers or members crew, respectively. Flight coverage for airline seats is fifty percent (50%). (b) Completeness of passenger-vehicle-ferry, high-speed passenger and passenger-hydrofoil: (i) up to eighty percent (80%) of the total number of passengers on board, if they have HEPA (High Efficiency Particulate Air) filters are responsible, under the responsibility of the shipowner, the manager and the masters, as well as their government certification bodies, for their installation and operation in accordance with the manufacturer's instructions. With the care of the shipowner, the manager and the masters, a plan for covering aircraft-type seats is prepared for each ship and ii) up to fifty percent (50%) if the equipment of approx. (I) has not been installed on the above ships. c) In any case, for the boarding of passengers from ports of mainland Greece to the islands and vice versa, the Health Statement Questionnaire before Boarding included in Annex 1 of the measures to prevent and deal with COVID-19 cases in passengers and passengers is completed. car ferries that perform maritime cabotage, which are posted on the website of the Ministry of Shipping and Island Policy https://www.ynanp.gr/en/. d) Passengers, masters and crew members are obliged, before boarding, during the voyage, as well as during the disembarkation of the passengers, to comply with the other measures for prevention and treatment of cases of COVID-19 coronavirus in the passengers and passenger - car ferries that perform maritime cabotage, (https://www.ynanp.gr/en/).