Few main rules
Diacritics
Incorrect
Correct
Currently, Romanian has ONLY the following diacritics: ă, â, î, ș and ț. The other types of diacritics can ONLY be used in words borrowed from other languages that have preserved their spelling or in quotations from another language.
In Romanian today there are NO letters ş or ţ. Using them in texts is a gross mistake. Likewise, an unforgivable mistake, with a one-way ticket to hell with eternal rectification by the client, is the lack of diacritics in text (be it website, facebook page, advertising text, etc.) The Romanian language has diacritics and they MUST be used in texts.

.png)
Quotation marks
Correct
The „Orthographic, orthoepic and punctuation lexicon", 5th edition, 1997, published by the Romanian Academy, „Iorgu Iordan” Institute of Linguistics, which we are following at the moment (and which is the bible of the „nerd” editor) says that in Romanian we use the following types of quotation marks — „...” (99 down at the beginning of the quotation and 99 up at the end). By the way, the specific occurrence of this type again is not explained or argued. When including a quotation, the «…» quotation marks are used inside. The more complex version would be in the case of inserting a quotation into another quotation and would look like this: „... «... „...” ...» ...”. So the basic principle to be guided by is alternation.
Incorrect
Am găsit câteva greșeli în textul de pe portal și mi-am spus: „Se mai întâmplă, cum spunea Socrate «Errare humanum est», păcat că e pe o resursă așa de populară.”
Fără să vreau, i-am spus: “Bine, o să îndeplinesc sarcina ‘as fast as possible’ în termenele stabilite.”
Dashes
Incorrect
Correct
Scuzați că v—am deranjat.
Gânduri – gânduri… treceau prin cugetul lui Dănilă.
Stau acasă singur-singurel.
Șoseaua Hâncești-Chișinău.
„Nevasta celui bogat de multe ori făcea zile fripte bărbatului, ca să-l poată descotorosi odată de frate-său. Ea zicea adeseori:
— Frate, frate, dar pita-i cu bani, bărbate.
— Apoi, dă, măi nevastă, sângele apă nu se face. Dacă nu l-oi ajuta eu, cine să-l ajute?”
Ion Creangă, „Dănilă Prepeleac”
In Romanian there are only the pause/dialogue line and the hyphen, the latter of which is used most often. If the hyphen is not preceded and followed by a blanc, the situation is the reverse in the case of the hyphen (except when it is used to write complex words that include at least one compound word written with a hyphen (north-north-east, north-east-south-east).
The so-called „en dash” is used only as an arithmetic sign for subtraction or sometimes to indicate larger time-scales (years, periods), as in the example 1998–2005. In specialized dictionaries, en dash does not exist as a punctuation mark. The assumption is that its use would have developed with the advent of computers and through the influence of English typography (basic for software).

The blank
This is also an important punctuation mark. The basic rule to keep in mind is that between punctuation marks and the text that precedes them, there is NEVER a blank space (as in French or, in German, quotation marks). So it does not precede the other punctuation marks, but follows them.
Abbreviations
Incorrect
Correct
Always leave a blank space after abbreviations.
I.Creangă
Șc.nr.4
ș.a.
J.F.Kennedy
I. Creangă
Șc. nr. 4
ș. a.
J. F. Kennedy
Units of measurement
Incorrect
Correct
Units of measurement that are part of the International System (SI) are not written with a full stop.
Below are the units after which there is no full stop. There are no fixed rules for the abbreviation of some units. In this case, the rule is: the abbreviation formula must be the same throughout the content. The non-breaking space is placed between the numerical value and its unit.
meter m
kilogram kg
second s
gram g
liter l
kilobyte KB
megabyte MB
megabit Mbit
Moldovan Lei MDL
1 000kg
32m²
36,6° С
180 °
10 ''
1000 kg
32 m²
36,6 °С
180°
10''

Numerals
Not recommended
Recommended
Specialized dictionaries do not have recommendations on how to write numerals, here the main logic is their legibility and correct spelling. The comma cannot be used to separate thousands for the simple reason that in Romanian it is the delimiter between integers and decimals. The period usually separates whole amounts from coins. In the text, whole numbers are used for millions and billions. Acceptable abbreviations are mil. and billions, which are only used in tables when space is required. At present, the sources found are at the organization level.
Therefore, the cardinal numerals — thousands, millions, billions and others, are written with non-breaking space inside.
Reminder: Cardinal numerals from 20 to 100 (in every hundred) are linked to the following noun by the preposition „de”. In Romanian, cardinal numbers up to and including nine are written with letters.
9,000
12000
6500000
9 000
12 000
6 500 000
