One possibility.

> could be that the certified copy is going back to an arbitration tribunal, albeit unlikely that there is an appeal from such, or back to a court of law of *original jurisdiction* cf. organismo jurisdiccional as a judicial body and once translated into 'English' by a Spanish abogado - giving a presentation at the European Court of Justice in Luxembourg - as a 'jurisdictional organism'.

“Primer” refers to when the case is first handled, this pertains to most levels of law (family, criminal, civil), it refers to when the casa is being tried for the first time.

--------------------------------------------------
Note added at 4 hrs (2021-04-04 00:52:57 GMT)
--------------------------------------------------

In the state level “primera instancia” refers to being tried for the first time “trial court.” “Segunda instancia” = Appellate Court/Court of Appeals and in Civil and Traffic Court it’s called a “Trial de Novo” (meaning to retry or have an entire new trial.) In some US states Traffic Court still belongs to the Criminal Division.

--------------------------------------------------
Note added at 9 hrs (2021-04-04 05:44:40 GMT)
--------------------------------------------------

Although “first instance,” is correct, I’ve seen it before. From
Mexican Law to American Law, “primera instancia” translates into “Trial Court.”

I understood:
'Take note of the respective notations in the government book and the system of the tribunal's statistics, refer to the first class original testimonial, and on this occasion, archive the file as a closed case.'

--------------------------------------------------
Note added at 2 days 1 hr (2021-04-05 22:00:52 GMT)
--------------------------------------------------

From the source text:
"Remítise al órgano de primer grado testimonio de la primera resolución ..."
is:
"Refer to the attestation from the court trial of the first instance of initial judgement (or a tribunal's decision)..."
Therefore,
"el órgano de primer grado" is
"the judicial authority's initial stage"

--------------------------------------------------
Note added at 11 days (2021-04-14 21:34:27 GMT)
--------------------------------------------------

The attestation is the testimonial or the proof.
The instruction orders for the first witness account or testimonial to be either referred to or sent to a panel.

--------------------------------------------------
Note added at 11 days (2021-04-14 21:47:44 GMT)
--------------------------------------------------

Notations are representations of numbers or quantities in a system, usually by a series of symbols.
Annotations are notes added to written work, for instance:
('People who disagree with other peoples's work and suggestions should always check their own knowledge and vocabulary very thoroughly and carefully before placing criticisms and feigning superiority or pretexts.')

--------------------------------------------------
Note added at 11 days (2021-04-14 21:58:50 GMT)
--------------------------------------------------

SP:"Háganse las anotaciones respectivas en el libro de gobierno y el sistema estadístico de este tribunal; remítase al órgano de primer grado testimonio de la presente resolución; y en su oportunidad, archívese este expediente como asunto concluído."
EN: "Make the respective annotations in the government book and the court's statistics in the filing system, refer (send) a copy of the decision to the first tribunal, then file it as a closed case."


https://www.deepl.com/translator#es/en/Háganse las anotaciones respectivas en el libro de gobierno y el sistema estad%C3%ADstico de este tribunal%3B rem%C3%ADtase al %C3%B3rgano de primer grado testimonio de la presente resoluci%C3%B3n%3B y en su oportunidad%2C arch%C3%ADvese este expediente como asunto conclu%C3%ADdo.