It seems we are facing another winter without too much rain, and again, people are talking about a water crisis in Israel.
"The authority plans to continue drilling for water, reopen old wells and prohibit the watering of lawns."
As a matter of fact, according to the Water Authority website, watering of all gardens is already prohibited (link in Hebrew) starting from November 1-st. To my knowledge, such regulations have been toothless until today, but it seems that this time authorities are determined to enforce the law.
I completely agree about the prohibition of watering of decorative lawns. People who already invested a lot of money in their lawns are complaining about the possibility of the lawn dying, but I really think it's a minor concern right now. With our water resources dwindling, we simply cannot afford such a luxury. Personally, I wouldn't spend money on maintaining a lawn anyway - water isn't just a valuable, scarce resource, it's also expensive. Right now, during winter, our yard is covered in wild-growing plants (also known as weeds). In the summer, the land will be mostly bare and that's OK.
However, I believe that the prohibition of watering gardens is too vague and fails to mention an important clause: people who grow vegetables and fruit for their domestic use in their private gardens, thus producing some of their food and working towards sustainability. Such people usually not only aren't wasteful, but do everything in their power to conserve resources. But of course, some over-zealous official might wage war against vegetable patches as well.
As long as it isn't specifically mentioned that watering edible plants is allowed, watering the radishes you planted in your back yard makes you a law-breaker.
Right now, we do minimal watering in our garden. We use mostly the surplus of water we save, such as cold water from showers, and even from ritual hand washing. We also manage to save some rain water in a few large buckets, and plan to add a rain water tank in the future. On rainy days, if we run out of containers, some of the collected water can be recycled for domestic use - such as washing floors, flushing the toilet, and hand-washing.
Even if your authorities don't have strict water regulations, conserving water is an environmentally conscious thing to do, and it will save you money.