ものとする
Shall / is stipulated that / is to be regarded as → formally defines a rule, assumption, or handling as an official decision
N1
Meaning
Shall / is stipulated that / is to be regarded as → formally defines a rule, assumption, or handling as an official decision
Formation
Clause (plain form) + ものとする
Noun + とするものとする
Explanation
ものとする is a formal rule-setting expression used to declare how something is to be handled, interpreted, or assumed.
🔸 ものとする = rule declaration
Key idea:
👉 “From this point on, this is how it is officially treated.”
Important characteristics:
Used to define rules, procedures, or assumptions
The decision is authoritative, not optional
Sounds impersonal and objective
Strongly institutional / legal / administrative
This grammar is extremely common in:
contracts
company rules
terms & conditions
regulations
JLPT N1 reading passages
It often appears in sentences that establish policy, not explain feelings or reasons.