zyuumintouroku wo suru ni sakidatte, honninkakuninsyorui wo kakuninsuru.

A natural reading is:

じゅうみんとうろく を する に さきだって、ほんにんかくにんしょるい を かくにんする。

Word readings:

• 住民登録 = じゅうみんとうろく
• する = する
• に先立って = に さきだって
• 本人確認書類 = ほんにんかくにんしょるい
• 確認する = かくにんする

This is fairly formal, bureaucratic Japanese, so you are likely to see it in official instructions or documents.

Because 住民登録 is a verbal noun (often called a する-noun). That means it can function like a noun by itself, but it can also become a verb when combined with する.

So:

• 住民登録 = resident registration
• 住民登録をする = to do resident registration / to register as a resident

This is very common in Japanese. For example:

• 勉強 → 勉強する
• 確認 → 確認する
• 登録 → 登録する

In this sentence, 住民登録をする is the action that happens later, and 本人確認書類を確認する is the action done beforehand.

に先立って means before, prior to, or in advance of. It is a formal expression.

So the structure is:

• V-plain + に先立って
• N + に先立って

In this sentence:

• 住民登録をするに先立って = before doing resident registration

This expression is more formal and official-sounding than 前に.

Compare:

• 住民登録をする前に = before doing resident registration
  → neutral, everyday
• 住民登録をするに先立って = prior to doing resident registration
  → formal, written, administrative

Because 住民登録 is being treated in the standard noun + を + する pattern.

So:

• 住民登録をする = the full, explicit form
• 住民登録する = also possible in many contexts, especially in modern Japanese

In formal writing, noun + をする can sound a bit more deliberate or careful. With administrative language, that kind of phrasing is common.

Also, because 住民登録 is a noun, another very natural formal version would be:

• 住民登録に先立って、本人確認書類を確認する。

That version is probably even more compact and typical of official notices.

Each を marks the direct object of a different verb.

1. 住民登録 を する

   • object of する
   • 住民登録 is the thing being carried out

2. 本人確認書類 を 確認する

   • object of 確認する
   • 本人確認書類 is what is being checked

So the sentence contains two separate actions:

• do resident registration
• check identity verification documents

The first action appears inside the before doing X phrase, and the second is the main action of the sentence.

It breaks down like this:

• 住民登録をするに先立って = before doing resident registration
• 本人確認書類を確認する = check the identity verification documents

So the overall pattern is:

[Action A] に先立って、[Action B]。

Meaning:

Before Action A, do Action B.

Even though English often says Before A, do B, Japanese here literally uses a structure closer to:

Prior to doing A, do B.

The main verb of the sentence is the last one:

• 確認する

Everything before that sets the timing or condition.

Because Japanese often omits the subject when it is obvious from context.

In a sentence like this, the missing subject could be interpreted in different ways depending on where it appears:

• in an instruction manual: the staff should check
• in a policy statement: the office checks
• in a procedural description: one checks
• in a directive to the reader: please check

Japanese frequently leaves that unsaid if the situation already makes it clear.

This is especially common in formal and administrative writing, where the focus is often on the procedure itself, not on who performs it.

Yes, it is definitely formal.

Clues:

• に先立って is formal/written
• the vocabulary is bureaucratic: 住民登録, 本人確認書類, 確認する
• the sentence is concise and procedural

In everyday conversation, a person would probably say something simpler, such as:

• 住民登録をする前に、本人確認書類を確認します。
• 住民登録の前に、本人確認書類を確認します。

Those feel more natural in spoken Japanese.

So this original sentence sounds like something from:

• an official form
• a city office notice
• a procedure manual
• administrative guidance

Both can mean before, but the nuance is different.

前に

• common and versatile
• used in everyday speech
• neutral

に先立って

• formal
• often used in writing, speeches, announcements, procedures
• has a more official tone, like prior to or in advance of

Examples:

• 食べる前に、手を洗ってください。
  = Wash your hands before eating.
  → everyday

• 式典に先立って、ご挨拶申し上げます。
  = Prior to the ceremony, I would like to offer a greeting.
  → formal

So in your sentence, に先立って helps create an official, procedural tone.

Yes, absolutely.

Both are possible, but they are slightly different in shape:

• 住民登録をするに先立って
  = prior to doing resident registration

• 住民登録に先立って
  = prior to resident registration

The second version is more compact because it treats 住民登録 simply as a noun event rather than explicitly saying do resident registration.

In formal writing, N に先立って is very common, so 住民登録に先立って may even sound more polished.

It is a compound noun made of several smaller parts:

• 本人 = the person concerned / the person themselves
• 確認 = confirmation / verification
• 書類 = documents

So 本人確認書類 literally means something like:

documents for verifying the person's identity

Japanese often combines nouns into long compounds, especially in formal and administrative vocabulary.

That is why official Japanese can look dense at first. Instead of using a longer phrase, Japanese often packs the meaning into one noun.

Similar examples:

• 申請書類 = application documents
• 本人確認 = identity verification
• 在留カード = residence card

Yes, 確認する often translates as to check or to verify, but it is more specific and formal than 見る.

• 見る = to look / to see
• 確認する = to confirm, verify, make sure

So here, 本人確認書類を確認する does not just mean casually looking at the documents. It means checking them to verify identity.

That is why 確認する is the natural choice in an administrative context.

Compare:

• 書類を見る = look at the documents
• 書類を確認する = check/verify the documents

It can mean either, depending on context.

Japanese nouns usually do not mark singular vs. plural as clearly as English does. So:

• 本人確認書類 could mean an identity verification document
• or identity verification documents

The real meaning depends on the situation.

In an official procedure, it often refers to whatever documents are required, whether that is one item or several.

That is why translations may vary:

• check an identity document
• check identity verification documents
• check ID documents

All of these can be reasonable depending on context.

The comma separates the introductory phrase from the main clause.

So:

• 住民登録をするに先立って、 = before doing resident registration,
• 本人確認書類を確認する。 = check the identity verification documents.

It works much like an English comma after an opening phrase.

In Japanese, punctuation is sometimes flexible, but in a sentence like this, the comma helps readability by showing where the timing phrase ends and the main action begins.