Laws of the Nine Days
1. It is our custom to refrain from eating meat or drinking wine (except on Shabbos) from Rosh Chodesh through Tisha B'Av and also until noontime of the day after Tisha B'Av.
2. If one must, it is certainly better to:
a. Eat chicken, etc., instead of meat.
b. Not eat freshly slaughtered meat.
c. Drink grape juice instead of wine.
d. Eat soup that contained meat, which now has been removed.
3. The above is in special situations. To use meat utensils for parve items is permissible.
4. A nursing mother who needs to eat meat for the sake of the baby's milk may certainly eat meat.
5. At a seudas mitzva i.e. Milah, Pidyon HaBen, meat and wine may be used (even wine for Bircas HaMazon)
6. One may eat meat and drink wine at a siyum mesichta if:
a. He did not plan it for the nine days. (I.e. rush his learning to finish now)
b. He usually eats meat at a siyum mesichta
7. The following may participate in the seudas siyum:
a. Friends or relatives who would usually attend this type of seuda.
b. Women who would usually come.
c. The wife and children of the "baal haseuda".
8. During the week of Tisha B'Av, the number of friends that are invited should be limited to ten (aside from the participants).
9. A seudas siyum on Shabbos has no restrictions.
10. There is no restriction on other alchoholic beverages.
11. The custom of not eating meat is very strong and should not be treated lightly.
12. The Kaf HaChaim quotes sources that permit eating meat left over from Shabbos on Motzoei Shabbos for Mlava Malka.
13. The wine of Havdala is given to a child who is over five years old but not yet aware of the importance of Tisha B'Av. If none is present, one may drink it oneself.
14. To use wine in cooking or baking seems to be permissible.
15. Wine vinegar does not pose a problem.

Laws of Tisha B’Av
1. Learning Torah is forbidden except for areas of Torah that discuss the destruction or have a saddening effect, such as the laws of mourning.
2. Even Thilim should not be recited until afternoon.
3. Certainly one may learn sifre mussar for the purpose of t’shuva.
4. Washing ones self is forbidden. If the hands of any of the body are soiled one may wash that area.
5. A woman who is preparing food for the evening or washing a child whose body is dirty, may do so even though her hands become wet.
6. Deodorant may only be used on the body if there is a bad odor.
7. Leather is forbidden as part of a shoe. If one needs these shoes for support it is permitted.
8. This would also apply to one who must walk a long distance and not wearing the shoes should cause damage to his foot.
9. One should certainly not engage in frivolous talk on Tisha B’Av this distracts him from the mourning. Therefore, one should not travel in-groups, even to the cemetary.
10. Certainly one should not read newspapers or listen to the radio since this also detracts from mourning.
11. No work should be done on Tisha B’Av. Light housework may be done after noon.
12. At night and until noontime one should sit on the floor or low stool. It should be lower than 12 inches.
13. One should cause a little discomfort in his sleeping process i.e. remove one pillow. If this will cause him discomfort all day, he should not do it.
14. Talis and T’filin are worn only after noon. The mishna brura states we do not say Shma then for it is as if we are studying Torah. Others disagree.
15. One, who must eat on Tisha B’Av, still says “Nacham” in davening and some say to add it in bircas hamazon. If possible, one should not eat bread so as not have the question of reciting “nacham”.
16. The restriction on meat, wine, bathing, haircuts, music and washing clothes is in effect until noon the following day. Since the mikdash burnt until the next day there is partial mourning.
We should merit the building of the Bais HaMikdosh in our time.