Avfallsmottaket kontrollerer aksjonskoden.

Because Norwegian usually writes compound nouns as a single word.

Here, avfallsmottaket is made up of:

• avfall = waste
• mottak = reception, receiving station, intake facility
• -et = the definite ending

So avfallsmottaket literally means something like the waste-reception facility.

This is very normal in Norwegian. Where English often uses several words, Norwegian often joins them into one:

• waste facility → avfallsanlegg
• school bus → skolebuss
• action code → aksjonskode

In Norwegian, the definite article is often attached to the end of the noun instead of being a separate word.

So:

• et mottak = a reception/intake point
• mottaket = the reception/intake point

and

• en aksjonskode = an action code
• aksjonskoden = the action code

That is why you do not see a separate word like English the.

The ending -et marks the noun as definite singular for many neuter nouns.

The base noun is:

• et mottak = a reception / intake point

Definite singular becomes:

• mottaket = the reception / the intake point

Since the whole compound is built on mottak, the full word becomes:

• avfallsmottaket = the waste facility / the waste reception point

So the ending depends on the final part of the compound, not the first part.

Because aksjonskode is treated as a common-gender noun in Bokmål:

• en aksjonskode = an action code
• aksjonskoden = the action code

In Norwegian, the last part of the compound decides the grammatical gender and the definite ending. The key part here is kode:

• en kode
• koden

So:

• aksjonskode
• aksjonskoden

Kontrollerer is the present tense of the verb å kontrollere.

So:

• å kontrollere = to check / inspect / verify / control
• kontrollerer = checks / is checking / controls

Norwegian present tense is simple compared with English. It does not change depending on the subject:

• jeg kontrollerer = I check
• du kontrollerer = you check
• han kontrollerer = he checks
• de kontrollerer = they check

The form stays the same.

No, this sentence has very straightforward Norwegian word order:

• Avfallsmottaket = subject
• kontrollerer = verb
• aksjonskoden = object

So it follows the basic pattern:

Subject + Verb + Object

That matches normal English word order here: The waste facility checks the action code.

Yes. Depending on context, kontrollere can mean:

• check
• inspect
• verify
• sometimes control

In this sentence, checks or verifies is probably the most natural meaning.

A learner should be careful not to assume it always means English control in the sense of to be in charge of. Often it is closer to check.

In Norwegian compounds, the last part is usually the main noun.

So in:

• avfallsmottak

the main noun is mottak.

That means:

• the word is a kind of mottak
• its gender comes from mottak
• its definite ending also comes from mottak

Likewise in:

• aksjonskode

the main noun is kode.

So it is a kind of code, specifically an action code.

This “last part is the head” rule is very useful for understanding Norwegian compounds.

Yes. Even though mottak literally relates to receiving, in compounds like this it often refers to a place or facility where something is received.

So avfallsmottaket would usually be understood as:

• the waste reception point
• the waste intake facility
• the waste disposal reception area

The exact English translation depends on context, but grammatically it is simply a noun referring to a specific place or unit.

They would normally write them as one word.

Correct:

• avfallsmottaket
• aksjonskoden

Incorrect in standard Norwegian:

• avfalls mottaket
• aksjons koden

This is an important difference from English. Norwegian strongly prefers solid compound spelling.

If you wanted the indefinite version, it would be:

Et avfallsmottak kontrollerer en aksjonskode.

That means: A waste facility checks an action code.

Compare:

• et avfallsmottak = a waste facility
• avfallsmottaket = the waste facility

and

• en aksjonskode = an action code
• aksjonskoden = the action code

This is a useful way to see how Norwegian builds definiteness.