At my company...
1. We're aware of the economic situation and what others companies are doing and are just monitoring
2. We decided to just to ever-so-slightly ease off the gas on hiring. It's definitely not a hiring freeze. Do not use those words.
3. Things are delayed just until the budget is discussed
4. No new hires (still don't call it a freeze) <-- We are here
5. Small amount of layoffs ?
6. Large amount of layoffs ?
(1-4 was about 3 weeks.)