An update on Chong Mek and Vang Tao crossing from a friend posting in Lao adventure riding Facebook group.
A quickie primer on crossing from Thailand into Laos at the Chong Mek/ Vang Tao border crossing. Did this yesterday on a CRF250L.
Make 3 photocopies of the photo page and current Thai visa pages of your passport, color isn't necessary black and white is fine. Also 3 copies of all pages of your bike's greenbook that have anything printed on them and insurance and registration documents. Sign all six copies.
At the Thai border go to the building across the road that looks similar to a highway toll booth. Ignore all signs for things like "border day passes" etc. At the toll booth like building submit passports and copies of documents you made. There are two windows at the toll booth, first one is immigration, the second for customs, to get the bike stamped out of Thailand, you will need to visit both. Once complete proceed into Laos.
There is a "no man's land" between the two countries, after a short distance you come to a sign welcoming you into Laos. On the right is a new, at this point still under construction, white building, immediately after this also on the right is an older beige building, this is the one you want. At the beige building, apply for the visa at window #5. After filling out the visa application (requires 2 forms) submit this along with passport, 1 passport photo and $35 US (cheaper than other currencies, exact change is important). They will process this for a few minutes and return it to you at window #6 around the corner of the building. Next, go to window #8 and hand them your green book and a set of the copies you made. This is Lao Customs. With my bike it cost 50,000 kip. She will give you two documents, keep the green one handy. Immediately behind window #8 is a beat-up wooden kiosk, this is where to obtain Lao bike insurance. Give them the documents you received at window #8 and a few minutes later exchange 40,000 kip for an envelope containing freshly issued insurance documents. At the far end of the same building is a money exchange, easy to change a small amount into kip required to pay for the various official fees. There are also two banks across the street that accept different types of debit cards. The close one didn't accept my card but the one closer to the Thai border did.
Freshly armed with our Lao visas, customs documents and kip we departed the border. About half a kilometer further on is a check station. Hand them the green document received at Customs window #8 and the process of entrance into Laos is complete. Remember to drive on the right side of the road!