CCR Animal Resource Program: CCR Rodent Cage Allocation Principles
January 2008
- Rodent cage allocations for each principal investigator (PI) are based on:
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Animal study design and justification
Board of Scientific Counselors (BSC) recommendations
Package for new tenure track or tenured investigator
Average cage usage in previous fiscal years
- Specialized animal space (i.e., immunocompromised, chemical carcinogen, ABSL-2) is generally not allocated. CCR-OD approves use for short-term defined needs on a rolling basis.
- For those investigators with short-term animal holding requirements, CCR offers holding space on a rolling basis in several facilities.
- Each PI is expected to operate within his/her allocation. Attempts are being made to co-locate Lab/Branch cages to permit sharing of cage allocations within the Lab/Branch’s total allotment in consultation with the Lab/Branch Chief and the PIs.
- Needs for additional cage space should be addressed within the Lab/Branch before submitting a Resource Request System (RRS) request. Permanent redistribution of allocations within the Branch/Lab must be approved by the CCR-OD.
- Steps should be taken to prioritize studies and manage the animal colony prior to requesting additional space (i.e., cryopreserve those strains not in use, maximize breeding/weaning/genotyping efficiency, etc.)
- Requests for additional rodent cages should be made through the RRS. Each request should include a strong justification. The CCR Animal Resources Oversight Group (AROG), which is advisory to the CCR leadership, will consider the RRS request and make a formal recommendation to the CCR leadership.
- When a PI leaves a Lab/Branch (though retirement, transfer to another Lab/Branch, departure from CCR, etc.), that PI’s cage allocation returns to the CCR-OD for redistribution and redeployment.
- Contracts: If the scope of an animal contract is decreased as a result of organizational changes (i.e., departure of a PI from a Lab/Branch) the allocation comes back to the CCR-OD for reallocation.
- Cage usage and adherence to allotments will be monitored. The PI must have existing space capacity and an approved Animal Study Proposal PRIOR TO introducing additional animals into his/her colony – including new transgenic/gene-targeted mice, animal purchases, etc.

