The requirements for the issuance and revocation of the licences are regulated in Section 8 of the Lake Constance Fisheries Act:
(1) The authority may issue a licence only to natural persons who:
a) have reached the age of majority and have the capacity to make informed decisions;
b) have passed the specialist examination in the fisheries training curriculum in accordance with the Agricultural and Forestry Vocational Training Act or a qualification recognised as equivalent in accordance with that Act; hold a European professional certificate proving this professional qualification (Section 22(1)(a) of the Provincial Service and Professional Qualifications Act [Landes-Dienstleistungs- und Berufsqualifikationsgesetz]); or prove professional experience in accordance with paragraph 3;
c) provide evidence that, in the 10 years prior to the application, they were lawfully employed as a fishing professional in a Member State of the European Union for at least 1 year or have worked as fishing aid or as a member of auxiliary staff in professional fisheries;
d) provide evidence that they have sufficient fishing equipment in the event of the issuance of the licence and that, in the event of the issuance of the offshore licence, no other offshore licence has been issued to their fishing operation;
e) do not already have a similar licence covering the period applied for and, if they possess a senior licence, do not simultaneously hold an offshore licence;
f) provide proof of the right to fish or authorisation under private law of the person entitled to fish to do so commercially in the area covered by the heap certificate applied for;
g) if they hold a senior licence until immediately prior to the start of the validity period applied for, held an offshore licence or a senior licence and can prove that they are in receipt of an old-age pension by virtue of having previously carried out a commercial fishing activity;
h) have not been convicted of a serious criminal offence in the 5 years preceding the application and have not, in the 2 years preceding the application, been convicted of a criminal offence relating to theft of fish or fishing equipment, property damage to fishing equipment, or encroachment of another party’s fishing rights;
i) have not, in the 2 years preceding the application, been sanctioned for gross or multiple violations of the provisions of fishery legislation and have not otherwise seriously infringed the interests of the fisheries.
(2) Evidence of training or examinations corresponding to a common training framework or a common training test established by the European Commission pursuant to Article 49a(4) or Article 49b(4) of Directive 2005/36/EC on the recognition of professional qualifications and introduced by the Provincial Government shall be equivalent to
evidence of formal qualifications under paragraph 1(b). The Provincial Government shall introduce a common training framework or a common training test by way of a regulation if the conditions laid down in Articles 49a or 49b of Directive 2005/36/EC are met.
(3) Professional experience within the meaning of paragraph 1(b) shall mean professional experience legally acquired as a fishing professional and any previous training as a fishing professional acquired by nationals of a Member State of the European Union in one of those States to at least the following extent:
a) 3 years of professional experience as a self-employed person or a manager of an operation, and 3 years of training;
b) 4 years of professional experience as a self-employed person or a manager of an operation, and 2 years of training;
c) 5 years of professional experience and 3 years of training;
d) 5 years of professional experience as a self-employed person or a manager of an operation;
e) 6 years of professional experience and 2 years of training; or
f) 8 years of professional experience, including 3 years as a self-employed person or a manager of an operation.
(4) The activities referred to in paragraph 3(d) and (f) must not have ceased than 10 years prior to the date of submission of the application and the complete documentation.