Legal and Official Language in Japanese

In Brief

Japanese legal writing expresses rules through recurring formulas rather than conversational phrasing. ものとする establishes a rule or legal treatment, この限りでない creates an exception, 妨げない preserves a right or possibility, and 準ずる requires treatment according to another standard. Read these expressions as parts of a rule system, not as word-for-word equivalents of English legal terms.

Overview

Legal and official Japanese appears in statutes, regulations, contracts, terms of service, government forms, and institutional rules. It normally uses the formal である written style, but its real difficulty lies in how clauses relate: one clause imposes a duty, another grants permission, and a proviso may narrow the rule. At C2, the goal is not merely to recognise formal vocabulary but to identify the legal effect of each sentence.

English legal translations can help, but they can also mislead. shall, may, and does not preclude are conventional English renderings, not fixed dictionary matches. For example, ものとする may impose an obligation, state an institutional rule, or create a legal fiction (a rule that treats something as true for legal purposes). Conversely, Japanese often leaves the actor unstated when the surrounding article makes it obvious.

This topic builds on Formal Written Style. You should already be comfortable with compressed noun phrases, passive forms, and structures such as に関し, により, and において. Here the focus is on reading the architecture of a provision accurately.

How It Works

First identify the type of rule

A legal sentence usually combines three elements:

1. Condition or scope — when, where, or to whom the rule applies.
2. Actor and action — who must, may, or must not do what.
3. Legal force — obligation, permission, prohibition, exception, or deemed status.

In 別に定める場合を除き、申請者は書面を提出しなければならない, the opening phrase limits the scope, 申請者 is the actor, and 提出しなければならない imposes the obligation.

Japanese pattern	Typical English reading	Function
Xは、Yするものとする	X shall Y / X is to Y	Establishes a binding rule or prescribed arrangement
Xすることができる	may X	Grants authority, permission, or eligibility
Xしてはならない	must not X	Prohibits an act
Xしなければならない	must X	Imposes an obligation
Xとみなす	is deemed to be X	Creates a conclusive legal treatment
Xと推定する	is presumed to be X	Creates a presumption that may be rebuttable
ただし、…	provided, however, that …	Introduces a proviso, often an exception or qualification
この限りでない	this rule does not apply	Exempts the stated case from the preceding rule

ものとする: prescribed rule or legal treatment

ものとする follows a plain-form verb or another predicate and gives the statement normative force: it presents the matter as the rule that governs the document.

• 甲は、代金を月末までに支払うものとする。 — Party A shall pay by the end of the month.
• 通知は、到達した日に効力を生ずるものとする。 — Notice is to take effect on the day it arrives.
• 当該申請は、取り下げられたものとする。 — The application is treated as withdrawn.

The last example is not an instruction to withdraw anything. The past form 取り下げられたものとする assigns a legal status. Context therefore determines whether the pattern prescribes conduct or declares how a fact is to be treated.

Do not automatically translate every instance as shall. Modern plain-English drafting may use must for an obligation, the present tense for a rule, or is deemed for a legal fiction. When reading Japanese, ask what effect the sentence has before choosing English wording.

Permission, duty, and prohibition

The noun こと turns an action into a noun-like unit (the action viewed as a “thing”). Legal Japanese frequently combines it with fixed predicates:

Form	Core force	Reading question
申し立てることができる	may file a petition or objection	Is a power or option being granted?
提出しなければならない	must submit	Who bears the duty?
開示してはならない	must not disclose	Exactly what conduct is prohibited?
提出を要しない	submission is not required	Is a requirement being removed?
提出することを妨げない	does not preclude submission	Is an existing option being preserved?

ことができる in a statute often grants legal authority rather than describing physical ability. 異議を申し立てることができる means that a person is legally entitled to lodge an objection, not merely capable of doing so.

Exceptions: ただし, 除き, and この限りでない

A proviso (a clause that qualifies the main rule) commonly begins with ただし. The formula この限りでない points back to the preceding requirement or prohibition and says that it does not govern the stated case.

• 職員は、情報を第三者に開示してはならない。ただし、本人の同意がある場合は、この限りでない。
• Main rule: staff must not disclose the information.
• Exception: that prohibition does not apply if the person has consented.

Here この does not refer vaguely to the whole document. この限り means, roughly, “the extent of the rule just stated.” The expression is therefore usually better read as this provision/rule does not apply, not literally as “it is not this limit.”

別に定める場合を除き places the exception before the main clause: “except as otherwise provided.” Xを除く can also remove a named item from a definition or scope. Always determine what is being excluded and from which rule.

妨げない: preserving an option

妨げない literally means “does not hinder,” but in legal prose it is a non-preclusion formula. It confirms that one rule does not eliminate another right, remedy, or action.

この規定は、損害賠償の請求を妨げない。 means that the provision does not prevent a claim for damages. It does not itself promise that the claim will succeed. The sentence preserves the possibility of making the claim; other legal requirements still apply.

The scope may be marked with Xを妨げるものではない, a common expanded form: 別途合意することを妨げるものではない (“does not preclude reaching a separate agreement”). This should not be confused with a direct permission formula. Non-preclusion removes a possible conflict; permission affirmatively authorises conduct.

準ずる and 準用する: following another standard

準ずる means to follow, correspond to, or be treated according to an established standard:

• 職員に準ずる者 — a person treated in a manner comparable to an employee
• 前項の規定に準じて処理する — handle the matter in accordance with the preceding paragraph

準用する is more technical. It says that another provision is applied to a different case with the necessary contextual adjustments. Translations sometimes use apply mutatis mutandis, meaning “apply with the changes required by the different context.” The source provision matters: a reader must inspect it and work out which terms or roles change.

Expression	Usual focus	Practical reading
Xに従う	compliance with X	Follow X as stated
Xによる	basis, means, or governance	Under/by means of X; context decides
Xに準ずる	correspondence to X	Follow X as the relevant standard
Xを準用する	application of a provision	Apply X to this case with necessary substitutions

These forms overlap, but they are not interchangeable. 準ずる signals similarity or accordance; 準用する explicitly carries a rule over to another situation.

Contract labels: 甲, 乙, and beyond

Contracts often define parties as 甲 and 乙, followed if necessary by 丙, 丁, and so on. These labels are placeholders, not pronouns and not titles of rank.

株式会社青空（以下「甲」という。）と山田花子（以下「乙」という。）は、次のとおり契約を締結する。 defines the company as Party A and Yamada Hanako as Party B. After that definition, the labels can be used without repeating long names.

Do not assume that 甲 is automatically the seller, employer, or stronger party. Its role comes only from the definitions and operative clauses. A good reading habit is to annotate each label immediately: “甲 = company/client” and “乙 = individual/contractor,” for example.

References and document structure

Japanese provisions rely heavily on internal references. Missing one reference can reverse the interpretation.

Japanese	English	What it points to
本法 / この法律	this Act	The current statute
本契約	this Agreement	The current contract
前条	the preceding Article	The article immediately before
前項	the preceding paragraph	The paragraph immediately before
次項	the following paragraph	The next paragraph
当該申請	the application concerned	The application already identified
別に定める	separately provided	Another rule or instrument, identified by context

当該 is an anaphoric word (a word that points back to something already mentioned). It narrows the reference to the relevant person, act, or document; it does not merely make a noun sound formal.

Examples in Context

Japanese	English	Note
甲は乙に対し、毎月末日までに報告書を提出するものとする。	Party A shall submit a report to Party B by the last day of each month.	A contractual duty; に対し marks the party toward whom it is owed.
本契約の有効期間は、締結日から一年間とする。	The term of this Agreement is one year from the date of execution.	とする directly fixes a term or status.
申請者は、決定を知った日の翌日から起算して三十日以内に、異議を申し立てることができる。	The applicant may file an objection within 30 days, counted from the day after learning of the decision.	ことができる grants a procedural right.
利用者は、第三者に自己のアカウントを使用させてはならない。	A user must not allow a third party to use the user's account.	させてはならない prohibits causing or allowing the act.
別に定める場合を除き、手数料は返還しない。	Fees will not be refunded except as otherwise provided.	A fronted exception limits the no-refund rule.
ただし、災害その他やむを得ない事由がある場合は、この限りでない。	However, this rule does not apply where a disaster or another unavoidable circumstance exists.	A proviso exempts the stated case.
本条の規定は、乙が損害賠償を請求することを妨げない。	This Article does not preclude Party B from claiming damages.	Preserves the claim; it does not guarantee recovery.
期間内に回答がないときは、承認したものとみなす。	If no response is received within the period, approval is deemed to have been given.	みなす creates the stated legal treatment.
前項の規定は、電子的方法による通知について準用する。	The preceding paragraph applies mutatis mutandis to notice by electronic means.	The earlier rule is carried over with contextual adjustments.
報酬その他の勤務条件は、常勤の職員に準ずる。	Remuneration and other working conditions shall correspond to those of full-time employees.	準ずる identifies the comparison standard.
甲および乙は、本契約に関して知り得た秘密を漏らしてはならない。	Neither Party A nor Party B may disclose confidential information learned in connection with this Agreement.	知り得た means “was able to learn/came to know,” in compact formal style.
本契約に定めのない事項については、甲乙協議の上、これを定める。	Matters not provided for in this Agreement shall be determined through consultation between the parties.	A standard clause for gaps in a contract.

Common Mistakes

Treating every ものとする as English “shall”

• Misreading: 取り消されたものとする = “shall cancel.”
• Better: 取り消されたものとする = “is deemed/treated as cancelled.”
• Why: The past predicate describes the status assigned by the rule. Identify whether the clause orders an act or creates a legal result.

Reading ことができる as ordinary ability

• Misreading: 異議を申し立てることができる only says that filing is physically possible.
• Better: It grants or confirms the legal right to file an objection.
• Why: In legal contexts, ことができる commonly marks authority, permission, or eligibility.

Applying この限りでない too broadly

• Wrong approach: Treat the whole section or contract as suspended.
• Right approach: Locate the immediately preceding rule that この限り points to.
• Why: The formula normally exempts the specified case from a particular requirement or prohibition, not from every nearby provision.

Assuming 妨げない guarantees a result

• Wrong: 請求を妨げない means the claimant will receive damages.
• Right: It means the provision does not bar the claimant from making the claim.
• Why: A preserved remedy may still fail on its facts or under another rule.

Assigning fixed roles to 甲 and 乙

• Wrong: Assume 甲 is always the employer and 乙 the employee.
• Right: Check the definitions at the beginning of that document.
• Why: The labels have no permanent commercial role or hierarchy.

Ignoring the source of 準用する

• Wrong approach: Translate 準用する as vague “compliance” and continue reading.
• Right approach: Go to the named article or paragraph and map its actors, deadlines, and exceptions onto the new case.
• Why: The imported provision supplies substantive content that the current clause does not repeat.

Usage Notes

Legal force comes from the whole document and the authority behind it, not from a single ending. A company handbook and a statute may use the same formula, but they do not have the same legal status. Similarly, ものとする sounds strongly prescriptive, yet its exact effect depends on what is being prescribed and how the document is governed.

Official writing often omits agents, compresses relative clauses, and stacks nouns: 個人情報取扱事業者, for example, is a multi-part legal term rather than an ordinary conversational phrase. Work from the final noun backward and mark particles before attempting a polished translation.

Punctuation provides structural clues. Japanese statutes commonly use numbered 条 (articles), 項 (paragraphs), and 号 (items). In contracts, headings help, but defined terms and cross-references control the reading. Parentheses may introduce abbreviations with 以下「X」という (“hereinafter referred to as X”) or narrow a definition.

English and Japanese drafting conventions do not align word for word. A natural translation may split one long Japanese sentence, repeat an omitted actor, or replace shall with must or the present tense. For study, keep two notes: a close structural gloss showing how the Japanese works, and a natural English rendering showing its likely effect.

Beyond the Basics: Interpreting Dense Provisions

At an advanced level, connect formulas across sentence boundaries. A typical sequence is:

1. a main rule;
2. a ただし proviso;
3. a definition or deemed rule;
4. a paragraph preserving another remedy;
5. a cross-reference applying another provision.

Build a rule map rather than reading each sentence in isolation. Write R for the main rule, E for an exception, D for a definition or deemed status, and C for a cross-reference. This quickly reveals whether a later clause narrows, expands, or merely explains the first one.

Keep みなす and 推定する separate. Xとみなす directs the reader to treat X as legally established for the provision. Xと推定する states a presumption; whether and how it can be rebutted depends on the governing law. Translating both simply as “assume” erases an important contrast.

Also distinguish obligation from best-efforts language. 努めなければならない and 努めるものとする impose a duty to endeavour, not an unconditional guarantee of the desired outcome. By contrast, 講じなければならない requires the stated measures to be taken. The object of the duty—result, action, or effort—is often more important than the formal ending alone.

Finally, apparent synonyms may have established meanings within a particular statute or contract. Definitions override ordinary expectations. Before deciding what 利用者, 職員, 営業日, or 通知 includes, search the document for 定義, いう, 含む, and 除く.

Practice Tips

1. Mark the legal function before translating. Underline conditions once, actors twice, and box endings such as ものとする, ことができる, and てはならない. Label each clause “duty,” “permission,” “prohibition,” “exception,” or “deemed status.”
2. Follow every reference. When you see 前項, 当該, or 準用する, copy the referenced text beside the current clause. Practise substituting the new actor or situation explicitly.
3. Compare authentic parallel texts carefully. Use a Japanese statute or public terms-of-service document with an official English version. Note where English uses must, may, the present tense, or is deemed rather than expecting one Japanese form to have one permanent translation.

Related Concepts

• Prerequisite: Formal Written Style — provides the である style, formal connectors, and compressed syntax used throughout legal and official documents.