1) Units 1) ER amts 2) ER amounts 3) OR amounts 4) RN measures 5) Adds to a missive 6) Adds to an e-mail 7) Airport label for Caracas 8) Alternative to fl oz 9) Courtesy e-mails 10) Dosage amt 11) Dosage amts 12) Dupes in inboxes 13) Dupes in some in-boxes 14) Dupes in some mailboxes 15) Email dupes 16) Email duplicates 
Carbon Capture and Storage. Three methods of capture used are pre combustion; post combustion and oxy-firing. Storage of captured CO2 usually in depleted oil reservoirs.
Clinical Classifications Software [formerly CCHPR: Clinical Classifications for Health Policy Research]
Clinical Cytometry Society
[Naval Acronyms and Slang] Casualty Clearing Station
Common Command Set + Common Communications Services + Common Communications Support + Continuous Composite Servo + Cryptographic Checksum
Computer Command subsystem on board a spacecraft, similar to CDS. 
Combined Chiefs of Staff (US/UK)
Communication Control System
Canadian Cardiovascular Society
Cool Carbon Star
Climate Controlled Seat
Coast Clutch Solenoid
Combined Chiefs of Staff (Allies) 
Common Channel Signaling. Signaling system used in telephone networks that separates signaling information from user data. A specified channel is exclusively designated to carry signaling information for all other channels in the system.
Carbon capture and storage (or sequester) projects