Garage sale and other temporary signs in unincorporated Inyo County are regulated under Title 18 Chapter 18.75 (Signs), which sets permitted signs, sizes, and heights by zone. Off-premise signs in or near state highway right-of-way are separately restricted by Caltrans under the State Outdoor Advertising Act.
Inyo County does not publish a standalone 'garage sale sign' rule; temporary signs such as garage- or yard-sale signs fall under Title 18 Chapter 18.75 (Signs), which regulates the construction, location, and maintenance of all signs in the unincorporated county. Chapter 18.75 establishes permitted signs by zone district (Section 18.75.120) and height limits (Section 18.75.110), with the Planning Director reviewing applications (Section 18.75.130). The verbatim provisions for temporary and off-premise signs are published in the codified Chapter 18.75 on eCode360. A practical constraint for garage-sale signs is that off-premise signs - a sign that advertises something not located on the same parcel - are heavily restricted near state highways. Caltrans, applying the State Outdoor Advertising Act, treats signs placed within 660 feet of and visible from a state right-of-way as off-site signs that are not allowed, and a 2012 Eastern Sierra report documented Caltrans removing real-estate 'For Sale' signs near Highway 395 on that basis. The same logic applies to garage-sale directional signs tacked to highway shoulders or utility poles in the right-of-way: they can be removed. Residents posting garage-sale signs should keep them on private property, follow Chapter 18.75 zone limits, and avoid the state-highway right-of-way. Confirm any size or duration limit with the Inyo County Planning Department, since the exact temporary-sign standards are set within Chapter 18.75.
Temporary signs exceeding Chapter 18.75 size or height limits, or placed where not permitted, may be ordered removed under Title 18. Garage-sale signs placed in or within 660 feet of a state-highway right-of-way can be confiscated by Caltrans as prohibited off-site signs.
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