I have made a research on various recourses and here what i have found:
https://www.freemovement.org.uk/it-just ... tizenship/
“Family members (within the meaning of the EEA Regulations) of workers were not required to hold CSI or an EHIC either.”
https://www.legislation.gov.uk/uksi/2016/1052/made
“Extended family member”
(5) The condition in this paragraph is that the person is the partner (other than a civil partner) of, and in a durable relationship with, an EEA national, and is able to prove this to the decision maker.
https://assets.publishing.service.gov.u ... pdf#page57
Durable partner
The applicant is (or for the relevant period was) in a durable relationship with the relevant EEA citizen (or qualifying British citizen), with the couple having lived together in a relationship akin to marriage or civil partnership for 2 years or more, unless there is other significant evidence of the durable relationship, for example, evidence of joint responsibility for a child (a birth certificate or a custody agreement showing they are cohabiting and sharing parental responsibility).
The durable partnership must not be (or have been) one of convenience; and neither durable partner has (or for the relevant period had) another durable partner, a spouse or a civil partner with immigration status in the UK or the Islands based on that person’s relationship with that durable partner.
Where the applicant does not already hold a permanent residence document, the applicant must provide evidence of the family relationship for the relevant period, namely:
• a relevant document (as described in sub-paragraph (a)(i) or (a)(ii) of that definition in Annex 1 to Appendix EU) as the durable partner of the relevant EEA citizen (or qualifying British citizen), and evidence which satisfies you that the durable partnership continues to subsist (or did so for the period of residence relied upon). This evidence might, for example, take the form of:
o evidence of cohabitation (bank statements or utility bills in joint names at the
same address, residential tenancy or rental agreements or mortgage
statements, official correspondence which links them at the same address) o evidence of joint finances, business ventures or commitments (tax returns of
business contracts, investments)
https://assets.publishing.service.gov.u ... AKFH6HNw_I
Applicants who must have
comprehensive sickness insurance
This page tells you how to consider which European Economic Area (EEA) nationals and their family members must have comprehensive sickness insurance (CSI) to be eligible for a document confirming their right of residence in the UK.
Regulation 4(1)(c)(ii) and (d)(ii) of the Immigration (European Economic Area) Regulations 2016 (as amended) states that nationals living in the UK as self- sufficient people or students must have CSI.
Regulation 4(2) of the regulations states that CSI must also cover the family members of self-sufficient persons. From 6 April 2015 (implemented in practice from 22 June 2015), this also applies to the family members of students.
Following the changes to the Regulations, regulation 4(4) has been amended to include dependent children of primary carers as well as primary carers for the purposes of regulation 16(2). This means that there is a requirement for all family members, who are dependent on that child for a right of residence, to hold CSI.
In our case, we both are EU nationals. We are in a durable partnership, which can be proved by providing council tax letters, mortgage statements, joint bank account statements, birth certificate of our daughter. I am full time employed since arrival to UK. So my partner wouldn’t require CSI for being a family member of the person, who is exercising treaty rights as a worker. That is my understanding.
Can someone, who is in similar situation, or has more knowledge about all this issues, point me in the right direction?