language, unemployment and NCS!

I got a letter from UK NARIC stating that my level of English language for my degree course is considered to meet the requirements of CEFR level C1, and they asked me if I may wish to receive a UK NARIC certificate of English language assessment for my qualification.
Does this letter satisfy the requirements of Knowledge of language in the UK in order to apply for naturalisation and do I need the certificate as well?
Secondly, My husband wish to apply for BC as well ( joint application) but he is unemployed, Does unemployment affect his or our application? if not, how he should answer questions 3.1 and 3-2 in Form AN as there is no box to tick for unemployed?
Finally,which is it better, to apply through NCS or by post?
Please advise
Thanks in advance

Not 100% sure of the English requirement.

Employment is not a requirement for Naturalisation, just write 'unemployed'. As long as your husband meets the 5 years residence and standard requirements (12 months ILR, LIUK, English B1, within absence limits, etc), he can apply.

You are aware that there is no longer a reduced fee for joint applications, it is the full fee for each applicant.

NCS is better, for a fee, as you get to keep your original documents.

Yes, C1 will meet B1.

Amber_ wrote:Yes, C1 will meet B1.

Many thanks Amber, Do I still need the certificate or only that letter would be fine?
another question please,will my colleague who is Engineer be accepted as a referee? I checked the list of acceptable professional persons which include Engineer but with professional qualifications, what do you understand that to mean?
Please advise
Kind regards
Summer

Hope someone can help! thanks

Is the engineer a member of a professional organisation?

Amber_ wrote:Is the engineer a member of a professional organisation?

He studied at university and got a degree in in civil Engineering.
Is membership a must? Thanks

Professional qualification is usually membership of professional body.