Also known as:id est · i.e. · ie · id. est. · that is · namely
Written by attorneys · grounded in primary & secondary sources — see below
A Latin phrase meaning that is and used to introduce a clarification or restatement of the preceding statement.
Sources & Authorities· 25 primary sources
Select any source to read its text and confirm it supports the definition.
Statutes
Federal Rules
Uniform Acts
How it applies
Common Examples
6
Consent Limits Breaking Element
Ismael Ibrahim obtained a resident's permission to enter the home only between 9 a.m. and 5 p.m. to repair a window. When Ismael arrived at 8 p.m. and forced the door after the resident refused entry, the court treated the forced entry as a constructive breaking because the time-limited consent did not authorize the later use of force.
Unmarketable Title Blocks Closing
Imperial Motors contracted to sell land to Ironwood Capital. A recorded but unreleased lien appeared in the chain of title. Ironwood Capital refused to close because the lien rendered title unmarketable under the objective standard of a reasonably prudent purchaser with full knowledge of the facts.
Innovate Pharmaceuticals sued Ideal Solutions in federal court. Innovate Pharmaceuticals sent a written notice and request for waiver of summons to Ideal Solutions as permitted by the rule. Ideal Solutions had a duty to avoid unnecessary service expenses and therefore waived formal service.
Political Contribution for Engagement
A law firm made a political contribution to a judicial candidate. The contribution was made to obtain appointment as counsel for a government agency. The contribution violated the rule because it was given for the purpose of securing a government legal engagement.
Temporary Impracticability Suspends Duty
Isaac Irving contracted to deliver goods by truck. A temporary bridge closure made performance impossible for two weeks. Isaac Irving's duty was suspended during the closure but revived once the bridge reopened because performance remained practicable afterward.
Fixed Location Requirement for Lease
Ilana Isaacs leased a mobile food truck space from a shopping center owner. The lease described only the truck itself without designating a fixed parking spot for the lease term. No landlord-tenant relationship formed because the space lacked a fixed location for the duration of the lease.
Common questions
Frequently Asked
3
Why do legal drafting guides recommend replacing i.e. with that is?+
Legal drafting guides advise replacing the Latin abbreviation i.e. with the English phrase that is because foreign phrases are generally disfavored in modern legal writing unless they constitute true terms of art.
Supporting sources
What does i.e. signal when it appears in a legal rule or statute?+
The abbreviation i.e. signals that the following language restates or clarifies the immediately preceding language rather than adding a new or separate requirement.
Supporting sources
How does i.e. differ from e.g. in legal drafting?+
The abbreviation i.e. introduces a restatement or equivalent while e.g. introduces an illustrative example. Substituting one for the other changes the logical relationship between the clauses.
Supporting sources
410 U.S. 113 (1973)Constitutional Law
…is to perform the abortion; as to the licensure of that person; as to the facility in which the procedure is to be performed, that is, whether it must be a hospital or may be a clinic or some other place of less-than-hospital status; as to the licensing of the facility; and the like. This means, on the other hand, that,…