............Rules.............. .............Registration Forms..............
| Classes and Sections | |
| Section 1 | Aerides, Rhynchostylis & Their Hybrids |
| Class 1 | Aerides & Rhynchostylis hybrids with flower width 3.5 cm and below |
| Class 2 | Aerides & Rhynchostylis hybrids with flower width above 3.5 cm. |
| Section 2 | Arachnis & Allied Hybrids |
| Class 3 | Arachnis species and its hybrids; Mokara, Aranda etc. (below 7 cm) |
| Class 4 | Arachnis species and its hybrids; Mokara, Aranda etc. (above 7 cm) |
| Section 3 | Ascocentrum & Asconcenda |
| Class 5 | Ascocenda with flower width 4.5cm and below |
| Class 6 | Ascocenda with flower width above 4.5cm but less than 7 cm |
| Section 4 | Bulbophyllum |
| Class 7 | Bulbophyllum species |
| Class 8 | Bulbophyllum Hybrids |
| Class 9 | Cirrhopetalum species |
| Section 5 | Cattleya and Allied |
| Class 10 | Cattleya & Allied with flower width 10cm and above – White/White Bicolor |
| Class 11 | Cattleya & Allied with flower width 10cm and above – Mauve/Purple Color |
| Class 12 | Cattleya & Allied with flower width 10cm and above – Any Other Colors |
| Class 13 | Cattleya & Allied with flower width between 7cm and less than 10cm |
| Class 14 | Cattleya & Allied with flower width 7cm and below include Epidendrum |
| Class 15 | Cattleya Species |
| Section 6 | Dendrobium |
| Class 16 | Dendrobium species |
| Class 17 | Dendrobium hybrids – curly type (spatulata) |
| Class 18 | Dendrobium hybrids – intermediate type |
| Class 19 | Dendrobium hybrids – round type |
| Section 7 | Doritis & Doritaenopsis |
| Class 20 | Doritaenopsis with flower width 4cm and below |
| Class 21 | Doritaenopsis with flower width above 4cm with strong Doritis genes |
| Section 8 | Oncidium & Allied |
| Class 22 | Oncidium and allied hybrids: intergeneric combinations of Oncidium |
| Class 23 | Oncidium – goldiana leaf type |
| Class 24 | Oncidium – mule ear/pencil leaf type (Trichocentrum & Psychopsis) |
| Class 25 | Oncidium – equitant type (Tolumnia) |
| Section 9 | Paphiopedilum and Pragmepidium |
| Class 26 | Paphiopedilum species |
| Class 27 | Paphiopedilum hybrids |
| Class 28 | Pragmepidium Species and Hybrids |
| Section 10 | Paraphalaenopsis |
| Class 29 | Paraphalaenopsis species |
| Class 230 | Paraphalaenopsis intergeneric hybrids |
| Section 11 | Phalaenopsis |
| Class 31 | Phalaenopsis – white or white with colored lip |
| Class 32 | Phalaenopsis – pink, pink or white with candy stripes/spots/blotch |
| Class 33 | Phalaenopsis – any other colors, e.g. yellow, yellow with stripes/spots |
| Class 34 | Phalaenopsis - species large |
| Class 35 | Phalaenopsis – novelty type hybrids – yellow/brown/greenish-yellow |
| Class 36 | Phalaenopsis – novelty type hybrids – red strain |
| Class 37 | Phalaenopsis violesia/belina species |
| Section 12 | Renanthera & Allied Hybrids |
| Class 38 | Renanthera species and its hybrids |
| Section 13 | Vanda |
| Class 39 | Vanda – terete/semi terete leaf type (includes semi terete Ascocenda) |
| Class 40 | Vanda – strap leaf type – blue color |
| Class 41 | Vanda – strap leaf type – any other colors |
| Class 42 | Vanda species |
| Section 14 | Masdevallia Tribe |
| Class 43 | Masdevallia tribe (Barbosella, Dresslerella,Dryadella, Restrepia Masdevallia and Zootrophion) |
| Class 44 | Masdevallia tribe hybrids |
| Section 15 | Maxillaria Tribe |
| Class 45 | Maxillaria tribe species (Acacallis, Anguloa, Bollea, Chaubardiella, Houtellia, Huntelya, Ida, Chaubardia, Cochleanthes, Telipogeon, Pescatorea, Trigonidium, Warrea, Zygostates, Zygopetalum, Zygosepalum, Maxillaria and Others) |
| Class 46 | Maxillaria tribe hybrids |
| Section 16 | Cymbidium |
| Class 47 | Cymbidium hybrids |
| Class 48 | Cymbidium species |
| Class 49 | Miniature Cymbidium |
| Section 17 | Odontoglossum |
| Class 50 | Odontoglossum species |
| Class 51 | Odontoglossum hybrids |
| Section 18 | Catasetum |
| Class 52 | Catasetum Clowesia Cynoches species |
| Class 53 | Catasetum Clowesia Cynoches hybrids |
| Section 19 | Stanhopia |
| Class 54 | Stanhopia species |
| Class 55 | Stanhopia hybrids |
| Section 19 | Lycasta |
| Class 56 | Lycasta Species |
| Class 57 | Lycasta Hybrid |
| Section 19 | Ada |
| Class 58 | Ada Species |
| Section 20 | Laelia |
| Class 59 | Laelia Species |
| Class 60 | Laelia Hybrid |
| Section 21 | Jewel Orchid |
| Class 61 | Jewel Orchid Species |
| Section 22 | Terrestrial |
| Class 62 | Spathoglottis species and hybrids |
| Class 63 | Terrestrial Species |
| Section 23 | Other |
| Class 64 | Other Species |
| Class 65 | Other Hybrids |
| Section 24 | Table Display |
| Class 66 | Table Top displays 1 plant |
| Class 67 | Table Top displays 2 plants or more |
| Section 25 | Group Display |
| Class 68 | a group of 6 orchid plants |
| Class 69 | a group display of not less than 7 or more than 14 orchids |
| Class 70 | Novice Class, any plant may be entered into this section by anyone who has not previously won any other class |