Okay, I'll hit on a few of the main rules of rallying. There aren't many I'll cover, but what I do hit on will be important! Note that I am leaving some very important rules out that simply don't apply to this rally, so don't rely on these as the gospel of rallying if you intend to do other rallies. If you are interested in more details, let me know.
Course following:
1) Roads marked in such a manner to indicate that they are not public or through (e.g. Private - Keep Out - Dead End, etc.) do not exist.
2) Roads which are illegal for the rally vehicle to enter do not exist.
3) Any road which clearly ends in a garage, a plant entrance, a parking lot, etc. does not exist.
4) U-turns are never required without instruction.
5) Unpaved roads will be considered non-existent for any purpose.
6) If the rally route encounters road construction, contestants will assume the road to be paved, unless otherwise instructed (hopefully this won't happen!)
7) In the absence of other course following considerations, contestants should take the road that appears to go straight or as nearly straight as possible through an intersection, e.g. slant T's and multiple intersections. The determination of which road is straight or nearly straight is made at the intersection in question. Roads are judged on their merits as you enter the intersection, now how they look as you approach the intersection. Note: we are not expecting you to break out the protractors to measure road angles. If it looks "close" to you, you are probably missing some other instruction that would take precedence (or you're lost!)

When a route instruction references a road name without the use of quotations marks, and suffixes are included, they can be used interchangeably with their appropriate corresponding abbreviations (e.g. Road/Rd, Drive/Dr, etc.)
Exeuction
1) Usually rallies consist of Numbered Route Instructions (NRI's) and are listed and executed in ascending numerical order. This rally also uses Lettered Instructions, but those familiar with rallying in other parts should ignore what they know about Lettered Route Instructions (LRI's) as these are different. The lettered instructions in this rally simply indicate that there is no course following component to the instruction. There may be, however, speed changes and other timing instructions. They too are to be executed in the order listed both with respect to themselves and to the NRI's.
2) When a route instruction contains more than one part (or action), the parts (actions) will be executed fully in the order in which they are presented. For example, sometimes there are multiple parts of an instruction linked by the word AND.
Mileages
1) An official mileage is the distance from the start of a section to a point along the rally route truncated to 1/100 mile. These may be indicated in the route instructions on the left. They are also indicated on checkpoint slips. I realize that many new cars these days have digital odometers and it is impossible to read or interpolate to the hundredth of a mile. The rally is designed so that it is not necessary to be able to read mileages to the hundredth of a mile to successfully navigate it.
2) When an instruction is accompanied by an official mileage, it MUST be executed at that mileage.
I am not certain whether Bowie got this into the rally or not, but the following 2 rules are in use by SCCA and other clubs is as follows. I will clarify whether or not this rule applies in this rally. This is known as the call-back rule and its purpose is to help you know when you're off-course.
3) The maximum distance between the first action point of an instruction and the first action point of the next listed instruction is 3.00 miles with the exception of the use of an asterisk as noted in the next rule.
4) An asterisk (*) in the left margin of an instruction indicates that the distance between the first action point of an instruction and the first action point of the previously listed instruction is greated than 3.00 miles, but no greater than 5.00 miles.
What this means, basically, is if you have gone more than 3 miles from the last instruction, unless you see an asterisk, you are probably lost and should turn around and go back to your last known on-course point. If you see the asterisk, the limit goes up to 5 miles.
Time Allowances (TA)
I am not sure we will be using Time Allowances in our rally. I will clarify this at the rally. But here is how they work. A time allowance is used in case you get behind on time (by going off course for example). Rather than speed to make up time (which rarely works out by the way!), you are encouraged to take a time allowance. This allows you to estimate the time you are behind and claim it as an allowance on your score card. The claimed allowance will be subtracted from your actual time to create a net time that will be compared to the correct time.
1) The time allowance must be requested in writing by the contestant on the scorecard in the appropriate box prior to approaching the checkpoint crew. In addition, it will be incumbent upon the contestant, immediately upon arrival at the checkpoint crew to ensure that the checkpoint crew make note of the allowance claimed.
2) A time allowance must be in the amount of 0.50, 1.50, 2.50, 3.50, ..., 19.50 minutes (i.e. always a whole minute plus 30 seconds). This is to ensure that two cars are not stacked up on each other. Procedurally the way this would work is if you think you are 5 minutes down, you would stop at the side of the road for another 30 seconds to make you an even 5.50 minutes down and then proceed, taking a 5.50 minute TA at the next checkpoint.
3) The maximum time allowance claimed at any one control is 19.50 minutes.
4) The maximum total time allowances claimed for each section is 19.50 minutes. Any more than this and you will arrive at closed checkpoints.
Added:
5) You are assessed a penalty for taking a TA (what, you thought you would get it for free?) If we offer this option, Bowie and I will have agree on the penalty, but traditionally it is 1 point for every hundredth of a minute you are early or late, up to a maximum of 50. In other words, your score is doubled for the first 50 points (half minute) when you use a TA.