CRRR: Certified / Return Receipt Requested
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Others
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What is the full form of CRRR?
CRRR stands for Certified / Return Receipt Requested. Fullformexpand.com has 4 other full forms for abbreviation CRRR.
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"CRRR." Fullformexpand.com, https://www.fullformexpand.com/crrr/349035. Accessed 21 Nov. 2025.
Fullformexpand.com, 2025. "CRRR." Accessed November 21, 2025. https://www.fullformexpand.com/crrr/349035.
"CRRR." (n.d.). Fullformexpand.com. Retrieved November 21, 2025, from https://www.fullformexpand.com/crrr/349035.
CRRR. (2025). Fullformexpand.com. Available at: https://www.fullformexpand.com/crrr/349035 (Accessed: 21 November 2025).
Found 4 other full forms for CRRR →
| Term | Full Form | Category |
|---|---|---|
| CRRR | Center for Respiratory Research and Rehabilitation
| Others |
| CRRR | Citizens for Radioactive Radon Reduction
| Others |
| CRRR | Colorado Rhodesian Ridgeback Rescue
| Others |
| CRRR | Copper Range Refrigerator
| Others |
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