| For two years a mobile flare stack has been in operation to vent the gas and reduce unpleasant smells. |
| By 1812 Jefferson had three threshing machines in operation, two powered by horses and one by a waterwheel. |
| I'm also a long-term member of the list, so there may well have been some bias in operation. |
| She added that she took security measures seriously anyway, and always made sure security locks on doors and windows were in operation. |
| A total of twenty-one programmes were in operation with dairy processors, livestock marts and meat plants. |
| Changing the legislation to legalise a practice that had been illegally in operation for some time was sensible. |
