While browsing vndb, I stumbled upon CBSA’s quarterly lists of approved/banned items, which happen to include JAST localized VNs and even magazines like Dengekihime.
Admissible:
Bazooka Cafe [ぷるるんカフェ / Trabulance]
Casual Romance Club [放課後恋愛倶楽部 ～恋のエチュード～ / KID & LIBIDO]
Come See Me Tonight [私に今夜☆会いに来て / Sekilala]
Do You Like Horny Bunnies? 2 [エッチなバニーさんは嫌い？2 / ZyX]
Edelweiss Deluxe Set [エーデルワイス / Overdrive]
Family Project – Kazoku Keikaku [家族計画 / D.O.]
Heart de Roommate [はあと de ルームメイト / Angel Smile]
Kana -Little Sister- [加奈～いもうと～ / D.O.]
Let’s Meow Meow! [みんなでニャンニャン / Yamikumo-Communications]
Private Nurse [プライベートナース / Angel Smile]
X-Change [Xchange / Crowd]
Prohibited:
Absolute Obedience [絶対服従命令 / Langmaor]
Critical Point [臨界点 ～クリティカル・ポイント～ / Sweet Basil]
Cosplay Fetish Academy [性愛学園ふぇち科 / Sekilala]
Discipline – The record of a Crusade [Active Soft]
Fatal Relations [禁断の血族 / C’s Ware]
Gibo: Stepmother’s Sin [義母 / Guilty]
Heartwork: The Game [Active Soft]
Hitomi -My Stepsister- [義妹・仁美 / Mercure]
Idols Galore! [召しませアイドル / Sekilala]
Lightning Warrior Raidy [雷の戦士ライディ～破邪の雷光～ / ZyX]
Lightning Warrior Raidy II [雷の戦士ライディII ～邪淫の神殿～ / ZyX]
Little My Maid [リトルＭｙメイド / Sweet Basil]
Jewel Knights Crusaders [ジュエルナイツ・クルセイダーズ / ZeroCool]
Pretty Soldier Wars [妖獣戦記Ａ．Ｄ．２０４８ ～真・説・序・章～ / D.O.]
Sensei 2 [せ・ん・せ・い2 / D.O.]
Slave Pageant [娼女接待 / Ignition]
The Sagara Family [相楽さん家の悦楽ライフ♪ / ZyX]
Tokimeki Check in! [ときめきCheck in! / Crowd]
Tsuki – Possession [憑き / ZyX]
Yin-Yang! X Change Alternative [いんやん えっくすちぇんじ おるたなてぃぶ / Crowd]
Looking at the tags it seems like the prohibited ones are generally because of incest/rape, but then Kana Imouto was admissible… I guess they were clear enough that they weren’t blood-related. Although I’m surprised they didn’t just ban it upon seeing the title. Basically, think twice before ordering from JAST’s shop page if you live in Canada…
As far as non-eroge stuff goes, there was a lot of prohibited eromanga and hentai anime. The ‘normal’ manga/anime seemed to all be admissible. Even Kiss x Sis is safe!