(a) 
The identification and preservation of significant paleontologic (fossil) resources is necessary as many such resources are unique and non-renewable.
(b) 
Preservation of such paleontologic resources provides a greater knowledge of City natural history, thus promoting City identity and conserving scientific amenities for the benefit of future generations.
The Paleontologic Resources (PR) Overlay District may be applied to those areas where paleontologic resources are known to occur or are likely to be present.
Specific identification of known fossil occurrences or potential paleontologic sensitivity is indicated by listing in the locality files of one or more of the following institutions.
(a) 
San Bernardino County Museum.
(b) 
University of California.
(c) 
Los Angeles County Museum.
The Paleontologic Resources Overlay District shall be designated by the symbol (PR) on the City of Yucaipa Natural Resource Overlay Map.
When a land use is proposed within a PR Overlay District, the following criteria shall be used to evaluate the project’s compliance with the intent of the overlay.
(a) 
In areas of potential but unknown sensitivity, field surveys prior to grading shall be required to establish the need for paleontologic monitoring.
(b) 
Projects which require grading plans and which are located in areas of known fossil occurrences within the overlay district, or that have been demonstrated to have fossils present in a field survey, shall have all mass grading monitored by trained paleontologic crews working under the direction of a qualified professional in order that fossils exposed during grading can be recovered and preserved. Fossils include large and small vertebrate fossils; the latter are recovered by screen washing of bulk samples.
(c) 
All recovered specimens shall be prepared to the point of identification and adequately curated into retrievable collections of an institution with appropriate staff and facilities for their scientific information potential to be preserved.
(d) 
A report of findings with an itemized accession inventory shall be prepared as evidence that monitoring has been successfully completed. A preliminary report shall be submitted and approved prior to the granting of building permits, and a final report shall be submitted and approved prior to the granting of occupancy permits. The adequacy of paleontologic reports shall be determined in consultation with the Curator of Earth Science at the San Bernardino County Museum.
(e) 
In no event shall the City require the applicant to pay more for mitigation [Subsections 85.030520(b)(c) and (d) above] within the site of the project than the following amounts.
(1) 
One half of one percent (.005) of the projected cost of the project, if the project is a commercial or industrial project.
(2) 
Three fourths of one percent (.0075) of the projected cost of the project for a housing project consisting of one unit.
(3) 
If a housing project consists of more than one unit, three fourths of one percent (.0075) of the projected cost of the first unit plus the sum of the following.
(A) 
$200 per unit for any of the next 99 units.
(B) 
$150 per unit for any of the next 400 units.
(C) 
$100 per unit for units in excess of 500