# Specifying placement rules - cont'd

+ To modify a placement policy, you can use `ALTER PLACEMENT POLICY`, and the changes will propagate to all objects assigned with the corresponding policy.

```
ALTER PLACEMENT POLICY myplacementpolicy FOLLOWERS=5;
```

+ To drop policies that are not attached to any table or partition, you can use `DROP PLACEMENT POLICY`. 
```
DROP PLACEMENT POLICY myplacementpolicy;
```
-------------------------------------------------------------